The Fifth Doctor (1982-1984)
Season Nineteen 
(1982) Season Nineteen (1982): Mortal Reminders
Adric is the first long-running companion to die.
Season Twenty 
(1983) Season Twenty (1983): Old Ghosts
First appearances of Turlough and Kamelion.
Special 
(1983) Special (1983): Many Happy Returns
The twentieth-anniversary telefilm.
Season Twenty-One 
(1984) Season Twenty-One (1984): Violent Times
First appearance of Peri.

Season Nineteen (1982): Mortal Reminders

The Doctor
The Fifth Doctor

Peter Davison (bio) made his first appearance as the Doctor in Logopolis (March 1981) and his last in The Power Of The Doctor (October 2022).

The Production Team

Following Christopher H Bidmead's departure from Doctor Who at the end of its eighteenth season, Antony Root (bio) became the interim script editor. When Root's training continued on another programme, he was replaced by Eric Saward (bio), who was already writing for the upcoming season. Root decided not to return to Doctor Who, and so Saward's appointment was made permanent.

The Stories
Castrovalva
Castrovalva by Christopher H Bidmead, directed by Fiona Cumming
In the TARDIS, the Doctor's regeneration is failing. He retreats to the tranquil environment of the Zero Room, little realising that he is snared in a trap set by the Master. The evil Time Lord has kidnapped Adric, and used a facsimile of the boy to send the TARDIS hurtling back in time, to be torn apart in the Big Bang. The desperate solution to the situation results in the destruction of the Zero Room, so Tegan directs the TARDIS to the mountaintop city of Castrovalva, legendary for its serenity. There she hopes the Doctor will be able to recuperate from his recent trauma... but has the Master laid a trap with a trap?
Four To 
Doomsday
Four To Doomsday by Terence Dudley, directed by John Black
The Doctor tries to get Tegan home, but instead lands the TARDIS on a spaceship which is four days from Earth. He meets the frog-like Monarch from the ruined planet Urbanka, who explains that the ship carries three billion Urbankan refugees. But Monarch has visited the Earth four times in the past, and the vessel is also home to representatives of the ancient cultures of Australia, China, Greece and the Mayan Empire. However, as the time travellers explore, they soon realise that something about the humans is not right. And they grow suspicious that Monarch's benevolent facade masks sinister intentions.
Kinda
Kinda by Christopher Bailey, directed by Peter Grimwade
The TARDIS lands on the idyllic jungle world of Deva Loka, where a survey team from Earth is assessing the planet for colonisation. Sanders, the expedition commander, has kidnapped two of the Kinda -- the apparently primitive native people of Deva Loka, who are led by the ancient prophetess Panna. But now the rest of the Kinda have turned against the humans, some of the team has gone missing, and security chief Hindle is descending into madness. To make matters worse, a sleeping Tegan finds herself in a nightmarish void, where her only escape is to become the vessel for an ancient evil which calls itself the Mara...
The 
Visitation
The Visitation by Eric Saward, directed by Peter Moffatt
It is the year 1666, and the Great Plague runs rampant throughout England. In a small village, the Doctor, Adric, Nyssa and Tegan find the townsfolk behaving in an odd, hostile manner. Unemployed thespian Richard Mace tells them that a comet was recently sighted in these skies, and the Doctor suspects that it was actually a spaceship. Soon, the time travellers discover the presence of fugitive Terileptils, who are performing experiments on rats in the concealed basement of a manor house. The aliens have taken control of the villagers' minds, while their lethal android stalks the countryside dressed as the Grim Reaper.
Black 
Orchid
Black Orchid by Terence Dudley, directed by Ron Jones
In 1925 England, a case of mistaken identity leads the Doctor to join a charity cricket match organised by the wealthy Cranleigh family. Nyssa discovers that Lord Charles Cranleigh's fiancee, Ann Talbot, is her exact double. Enchanted with the time travellers, the Cranleighs invite them to a masquerade ball that evening. There, Tegan learns of the tragic loss of Charles' elder brother, George, on a botanical expedition to South America. Meanwhile, the Doctor discovers a dead body hidden beyond a secret passageway. Having stolen the Doctor's harlequin costume, the killer now stalks the party, intent on Ann.
Earthshock
Earthshock by Eric Saward, directed by Peter Grimwade
In a cave complex on twenty-sixth-century Earth, the Doctor, Adric, Nyssa and Tegan come to the aid of a platoon of soldiers, who have been attacked while investigating the deaths of several scientists. The Doctor discovers that the killers are actually androids, left to guard a massive bomb capable of destroying the planet. The Doctor disarms the explosive with Adric's help. He traces the detonation signal to a deep-space freighter where recent disappearances amongst the crew have baffled Captain Briggs. The true culprits are the Cybermen, whose plot against the Earth will have devastating consequences...
While foiling the Cybermen's plans, Adric dies when the freighter explodes.
Time-Flight
Time-Flight by Peter Grimwade, directed by Ron Jones
The TARDIS materialises at modern-day Heathrow Airport, where a Concorde airplane has just vanished from the skies. The Doctor, Nyssa and Tegan offer to help, and they board a second Concorde which follows the same flight path as the first. They discover a time corridor which propels them back to the Pleistocene Era. There they find that the first Concorde's crew and passengers have been enslaved by the sinister sorcerer Kalid, who is forcing them to excavate a sanctum within a mysterious citadel. An alien intelligence takes possession of Nyssa, warning the Doctor of the great peril that awaits him within.

Making History

For the first time ever, Doctor Who was moved out of its traditional Saturday evening timeslot and instead aired twice-weekly -- on both Monday and Tuesday nights -- during Season Nineteen. This change was prompted by the drastic drop in ratings of the previous year, an erosion which was largely reversed with the new schedule and the new Doctor.

Season Twenty (1983): Old Ghosts

Companions and Recurring Characters

Vizlor Turlough was an alien from the planet Trion who was imprisoned on Earth, and became a member of the TARDIS crew while acting as an agent of the sinister Black Guardian.

Mark Strickson (bio) made his first appearance as Turlough in Mawdryn Undead (February 1983) and his last in The Caves Of Androzani (March 1984).

Vizlor Turlough

Kamelion was a shape-shifting android whom the Doctor rescued from the clutches of the Master.

Kamelion appeared between The King's Demons (March 1983) and The Caves Of Androzani (March 1984). Its default voice was provided by Gerald Flood (bio).

Kamelion

The Stories
Arc Of 
Infinity
Arc Of Infinity by Johnny Byrne, directed by Ron Jones
On Gallifrey, the Doctor's bio-data extract is stolen from the Matrix while, in Amsterdam, Tegan Jovanka's cousin goes missing after an encounter with something alien. When a being from an anti-matter universe begins to genetically bond with the Doctor, the TARDIS is summoned back to Gallifrey. There, the High Council orders the Doctor's execution, as a means of preventing the anti-matter entity from usurping the Matrix. Suspecting a traitor amongst the High Council, it falls to Nyssa to save her friend... while, on Earth, Tegan becomes enmeshed in the cosmic web of revenge which connects all of these events.
Snakedance
Snakedance by Christopher Bailey, directed by Fiona Cumming
Five centuries ago, Manussa was the seat of the Mara's empire. There it was seemingly destroyed by the Great Crystal, but was really only banished into dreams. Now many Manussans consider the Mara to be little more than a fairytale, while it has been patiently awaiting the opportunity to restore its power. Seizing control of Tegan's mind, the Mara compels her to direct the TARDIS to Manussa. There she corrupts Lan, the Federator's son, who will be the vessel for the Mara's return. With few besides the Snakedancers in the hills standing guard against the Mara, only the Doctor can prevent its return and save his companion.
Mawdryn 
Undead
Mawdryn Undead by Peter Grimwade, directed by Peter Moffatt
Retired from UNIT, Brigadier Lethbridge-Stewart now teaches maths at a boys' boarding school where one of the pupils, Turlough, is secretly an alien. The Black Guardian convinces Turlough to kill the Doctor, and directs him to a concealed transmat capsule. It leads to a spaceship, deserted except for the TARDIS. The Doctor accompanies Turlough back to Earth, and is shocked to discover that the Brigadier has forgotten him. Tegan and Nyssa try to follow in the TARDIS, but find themselves arriving seven years too early. There they meet not only the Brigadier, but also a horribly burned man who claims to be the Doctor.
Under orders from the Black Guardian, Turlough joins the Doctor.
Terminus
Terminus by Steve Gallagher, directed by Mary Ridge
Turlough sabotages the TARDIS, resulting in the appearance of a doorway which leads to an ageing spaceship. There the time travellers encounter the pirates Kari and Olvir, who realise that the vessel is carrying victims of the fatal and virulent Lazar disease. The ship docks at Terminus, a space station where the weary Vanir care for the Lazars in the last days of their lives. Soon Nyssa begins to succumb to the plague, while the Doctor discovers that Terminus lies at the exact centre of the universe. Meanwhile, in the heart of the Forbidden Zone, guarded by the mysterious Garm, waits an ancient and terrible secret...
Nyssa decides to stay on Terminus to help treat the Lazar victims.
Enlightenment
Enlightenment by Barbara Clegg, directed by Fiona Cumming
Under the failing influence of the White Guardian, the TARDIS materialises aboard a spacecraft disguised as an Edwardian racing yacht. Its captain, Striker, is competing in a race across the solar system. He and his officers are Eternals -- immortal beings incapable of creative thought -- while the sailors are “ephemerals”, mortals whose minds give the Eternals sustenance. Tegan attracts the interest of the first mate, Marriner, while the Doctor suspects that one of the Eternals is cheating to win the mysterious prize of Enlightenment. Meanwhile, Turlough begins to realise that there may be no escape from the Black Guardian...
The 
King's Demons
The King's Demons by Terence Dudley, directed by Tony Virgo
The TARDIS brings the Doctor, Tegan and Turlough to the castle of Ranulf Fitzwilliam, in 1215 England. Also present are King John and his champion, Sir Gilles Estram, who have accused Ranulf of failure to provide adequate financial support to the throne. The Doctor is baffled -- not just because King John is meant to be in London, involved in the events which will lead to the signing of the Magna Carta, but also because he is strangely unperturbed by the arrival of the TARDIS. Soon the evidence mounts that the king is an impostor. But who is really pulling the strings, and to what end?
The Doctor invites the shape-changing robot Kamelion into the TARDIS.

Making History

Each story of Season Twenty saw the return of an element from Doctor Who's past, a coincidence noticed by Ian Levine -- who was then acting as the programme's unofficial fan adviser -- and used for publicity purposes by John Nathan-Turner. Characters brought back from previous years included Omega, the Mara, Brigadier Lethbridge-Stewart (whose role in Mawdryn Undead was originally written for Ian Chesterton), the Black and White Guardians, and the Master. The list should have included the Daleks as well, but industrial action forced the cancellation of the planned season finale. It was ultimately made as Resurrection Of The Daleks the following year.

Special (1983): Many Happy Returns

The Story
The Five 
Doctors
The Five Doctors by Terrance Dicks, directed by Peter Moffatt
While the Fourth Doctor is trapped in a time vortex, the First, Second and Third Doctors are drawn to the forbidden Death Zone on Gallifrey, together with many of their companions. They are joined by the Fifth Doctor, who is fading from existence. The Doctors journey towards the Dark Tower at the heart of the Death Zone, encountering some of their deadliest foes en route -- including the Master, who has been recruited by the High Council. When the Fifth Doctor teleports himself to the Capitol, he uncovers evidence of a traitor amongst the Time Lord elite. All are embroiled in the Game of Rassilon, whose prize is immortality itself.

Making History

Celebrating Doctor Who's twentieth anniversary, The Five Doctors was broadcast eight months after the conclusion of Season Twenty. The special episode featured all five Doctors -- although Tom Baker was confined to clips from the unfinished Shada, and the late William Hartnell appeared only in an excerpt from The Dalek Invasion Of Earth, with the First Doctor otherwise played by Richard Hurndall. They were joined by eleven companions (Susan, Jamie McCrimmon, Brigadier Lethbridge-Stewart, Zoe Heriot, Liz Shaw, Mike Yates, Sarah Jane Smith, K·9, Tegan Jovanka and Turlough, with Romana also being represented via clips from Shada) and four old enemies (the Master, the Cybermen, a Dalek, a Yeti), in addition to the Time Lords.

Season Twenty-One (1984): Violent Times

Companions and Recurring Characters

Perpugilliam (Peri) Brown was an American college student who became embroiled in the Master's scheme to seize the power of the numismaton flames on the planet Sarn.

Nicola Bryant (bio) made her first appearance as Peri in Planet Of Fire (February 1984) and her last in Dimensions In Time (November 1993).

Peri Brown

The Stories
Warriors Of 
The Deep
Warriors Of The Deep by Johnny Byrne, directed by Pennant Roberts
In 2084, the TARDIS materialises in an underwater seabase, operated by one of two power blocs waging a bitter cold war. It has been infiltrated by enemy agents Solow and Nilson, who are planning to use the brainwashed Maddox to cripple its offensive capabilities. Meanwhile, Commander Vorshak is contending with the appearance of an unidentified object travelling towards the seabase. The Doctor recognises it as a Silurian cruiser. To support their invasion of the seabase, the ancient reptiles have reawakened not only a platoon of their Sea Devil cousins, but also the rampaging terror known as the Myrka.
The 
Awakening
The Awakening by Eric Pringle, directed by Michael Owen Morris
The Doctor and Turlough accompany Tegan to the village of Little Hodcombe. She plans to visit her grandfather, Andrew Verney, but learns that he has gone missing. The villagers, led by Sir George Hutchinson, are re-enacting events from 1643, when the English Civil War came to Little Hodcombe. But now strange apparitions are haunting the village, and the Doctor finds Wil Chandler, an urchin from 1643, hiding in the ruined church. Little Hodcombe has come under the influence of an alien entity called the Malus -- and when Tegan is chosen to be the Queen of the May, she may become its next victim.
Frontios
Frontios by Christopher H Bidmead, directed by Ron Jones
The TARDIS arrives on the planet Frontios, where the last vestiges of humanity crashlanded years earlier. Now the colony struggles to survive under constant meteorite bombardment. To make matters worse, people are going missing -- and the colony leader, Captain Revere, seems to have been sucked down into the ground. When even the TARDIS is apparently destroyed, the Doctor becomes determined to get to the bottom of the mystery. Lurking beneath the colony are the Gravis and his Tractators -- creatures so terrible that Turlough is paralysed by latent memories of the devastation they inflicted on his ancestors.
Resurrection 
Of The Daleks
Resurrection Of The Daleks by Eric Saward, directed by Matthew Robinson
The TARDIS is nearly torn apart in a time corridor. The Doctor and Tegan explore one end: a warehouse on modern-day Earth, where they find an escapee from the Daleks named Stien. At the other end, Turlough is on a Dalek battleship, which is invading a space station in the future. A bomb disposal squad arrives at the warehouse, and the Doctor helps them investigate some mysterious cylinders. On the space station, the mercenary Lytton intends to free the imprisoned Davros. The Daleks have lost their war with the Movellans due to a virus which afflicts only their kind... and they intend to rescue Davros so that he can create a cure.
Tired of the death and violence she has witnessed, Tegan remains on Earth.
Planet Of 
Fire
Planet Of Fire by Peter Grimwade, directed by Fiona Cumming
Kamelion is malfunctioning when the TARDIS picks up a distress signal emanating from modern-day Lanzarote. Archaeologist Howard Foster has found a strange artefact which is taken by his step-daughter, Peri Brown. When Turlough saves Peri from drowning and brings her aboard the TARDIS, the Doctor realises that the artefact is emitting the signal. It propels the TARDIS to the planet Sarn, where Kamelion falls under the sway of the Master, and convinces Chief Elder Timanov that he is a divine emissary. Meanwhile, Turlough finds evidence of a mysterious connection between Sarn and his homeworld of Trion.
Turlough returns to Trion and the Doctor destroys Kamelion at the robot's request, while Peri travels on in the TARDIS.
The Caves Of 
Androzani
The Caves Of Androzani by Robert Holmes, directed by Graeme Harper
On Androzani Minor, the Doctor and Peri are mistaken for gunrunners and captured by General Chellak. Employed by Morgus, a powerful businessman, Chellak and his troops are trying to flush out the masked Sharaz Jek and his army of androids. At stake is a priceless supply of life-prolonging spectrox. Jek rescues the Doctor and Peri from execution, and they learn that he was betrayed by Morgus long ago, resulting in his disfigurement. But they also discover that they have contracted lethal spectrox toxaemia poisoning -- and it becomes clear that the Doctor will never find a cure in time to save both Peri and himself.
His body irreparably damaged by spectrox toxaemia, the Doctor regenerates.

Making History

After a period of relative stability, Doctor Who saw a complete turnover in its cast during the three-story period from Resurrection Of The Daleks to The Caves Of Androzani. The Fifth Doctor, Tegan and Turlough all made their exit, while the Kamelion robot was also hastily written out due to ongoing problems with its functionality. It would be the Sixth Doctor and Peri who would take Doctor Who into the mid-Eighties, and a period of unprecedented turmoil...