Role reprises:

• The Five Doctors
• Legacy Of The Daleks

Information:

• Home Planet: Gallifrey (presumably)

Susan has been travelling with the Doctor since he left Gallifrey. She often referred to the Doctor as 'grandfather', although it is not known if she really was his granddaughter.

She was resident in the TARDIS with the Doctor whilst she was a student at Coal Hill School; her unusual behaviour piqued the interest of two of her teachers which led them to 76 Totters Lane. She was the first member of the TARDIS crew to depart.

Other appearances by Jacqueline Hill:

• Lexa in Meglos

Information:

• Home: London, Earth
• Occupation: History teacher

Barbara was a history teacher at the Coal Hill school. Eager to find out more about Susan's advanced knowledge she and Ian Chesterton followed Susan back to Totter's Lane. Thinking Susan was being held captive in a police box she forced her way into the TARDIS.

Being a history teacher Barbara was able to see the periods which she taught about, although when the Daleks' time machine became available she and Ian were able to return to their own time.

Information:

• Home: London, Earth
• Occupation: Science teacher

Ian was a science teacher at the Coal Hill school. Eager to find out more about Susan's advanced knowledge he and Barbara Wright followed Susan back to Totter's Lane. He followed Barbara after she barged into the TARDIS after Susan.

Being a science teacher Ian was able fascinated by the technology of the TARDIS, although when the Daleks' time machine became available he and Barbara were able to return to their own time.

Information:

• Home: Earth (25th century)

Vicki was the only survivor of a crashed spaceship after the only other survivor was killed and joined the TARDIS crew rather than be left behind.

Coming from Earth in the future she often found Ian and Barbara almost primitive as she was far more technologically aware.

During the Trojan war she fell in love with Troilus, and stayed behind on Earth adopting the name Cressida.

Other appearances by Peter Purves:

• Morton Dill in The Chase (2. The Death Of Time)

Information:

• Home: Earth
• Occupation: Space pilot

Steven was a space pilot who was captured by the Mechanoids and held captive when he crashed on Mechanus. He escaped with the Doctor, Ian, Barbara, and Vicki and joined the crew as Ian and Barbara left. He left to become the leader of the Savages and Elders.

Information:

• Home: Earth (12th century)

Katarina joined the crew of the TARDIS while fleeing from the destruction of Troy; she had been one of Cassandra's serving girls.

She sacrificed herself to save the Doctor; when a convict was threatening to kill everyone on a ship she opened the airlock flinging the convict and herself out into space.

Other appearances by Jean Marsh:

• Joanna, sister of King Richard in The Crusade
• Morgaine in Battlefield

Information:

• Home: Earth (41st century)

Sara Kingdom was assigned by Mavic Chen the task of killing the Doctor. She kills her brother, Bret Vyon (played by Nicholas Courtney), and only then realises that the Doctor is on the side of good and Mavic Chen has betrayed Earth to the Daleks. She was killed by the Time Destructor in the death of Kembel.

Information:

• Family: Possibly the descendant of Anne Chaplette
• Home: London, Earth (20th century)

Dodo joined the crew of the TARDIS when she wandered into the TARDIS on Wimbledon common thinking it an actual police call box. She left to stay in London. She was the first companion who did not to do battle with the Daleks.

Information:

• Home: London, Earth (20th century)

Polly joined with the Doctor with Ben after the fight in London with the War Machines. They were the first contemporary companions since Ian and Barbara. They left to stay in London after the fight with the Faceless Ones. They were also the first companions to witness a regeneration, from William Hartnell to Patrick Troughton.

Information:

• Home: London, Earth (20th century)
• Occupation: Seaman

Ben joined the Doctor with Polly and left with Polly, the two were nearly inseparable. Polly met Ben at a night club where Able Seaman Ben Jackson was moping over his drink. Polly was finally able to cheer him up, and they set out on their adventure with The War Machines. He also witnessed William Hartnell's regeneration to Patrick Troughton.

Role reprises:

• The Five Doctors
• The Two Doctors

Information:

• Home: Scotland, Earth (19th century)

Jamie joined the TARDIS shortly after he led the Doctor, Ben and Polly back to the TARDIS on Culloden Moor. Jamie was one of the few companions to meet the Time Lords. He left when the Time Lords erased all memories of his travel with the Doctor except for the first after the Doctor's trial in The War Games.

Role reprises:

• Downtime

Information:

• Home: Earth (19th century)

Victoria joined the crew after she and her father were used by the Daleks to attempt to find the human factor. Her father was killed on Skaro, and she was taken there. When the Dalek Civil War broke out, she escaped with the Doctor in the TARDIS. She left to stay with a family in Aberdeen after the oil rigs there were attacked by seaweed.

Other appearances by Nicholas Courtney:

• Bret Vyon in The Daleks' Masterplan

Information:

• Family: Wife Doris
• Home: London, Earth (20th century)

Irregular as a regular, he appeared as part of UNIT for William Hartnell,Patrick Troughton, Jon Pertwee, Tom Baker and Sylvester McCoy. He also appeared alongside Peter Davison as a schoolmaster. The Brigadier (promoted from Colonel) was never really a travelling companion of the Doctor's. His first journey using the TARDIS took place during the Three Doctors. He was assigned to help fight the Yeti in the London Underground, and for his effort was promoted to Brigadier and assigned command of UNIT, the United Nations Intelligence Taskforce. His appearances were primarily Earth based, although from Earth he did get to fight most menaces, including Daleks, Cybermen, and Yeti. He witnessed Jon Pertwee's regeneration into Tom Baker. He has seen/met almost every Doctor (he has met the Sixth Doctor in books and the Eighth Doctor in Audio)

Role reprises:

• The Five Doctors

Information:

• Home: Earth (21st century)

Zoe was a student at the Earth School of Parapsychology which emphasised logic and science. At first she lacked emotions, but this changed during her travels with the Doctor. She also possessed a photographic memory. Zoe was one of the few companions to meet the Time Lords. She left when the Time Lords erased all memories of her travel with the Doctor except for the first after the Doctor's trial in The War Games.

Other appearances by John Levene:

• A Cyberman in Moonbase
• A Yeti in The Web Of Fear
• A Yeti in The War Games

Information:

• Home: London, Earth (20th century)

Irregular as a regular, he appeared as part of UNIT for Patrick Troughton, Jon Pertwee, and Tom Baker. Benton was a member of UNIT from when it fought against the Cyberman invasion to when they defeated the Kraals. He travelled in the TARDIS once in The Three Doctors. He was also a love interest for Jo Grant. Benton started as Lance Corporal and was promoted to Sergeant for Spearhead from Space. Promotion to Warrant Officer was mentioned in The Three Doctors. He was promoted to Regimental Sergeant Major for Robot.

Role reprises:

• The Five Doctors

Information:

• Home: London, Earth (20th century)

After strange meteorites started appearing Doctor Liz Shaw was drafted in as UNIT's scientific adviser, until the newly regenerated Doctor was found. Liz Shaw was the first, and to date only, companion never to have travelled in the TARDIS. She left UNIT to continue her academic career. There was no proper leaving party.

Role reprises:

• Planet Of The Spiders (Episode 1 - Voice only)
• Genocide

Information:

• Home: London, Earth (20th century)

Jo Grant was the niece of a cabinet minister who had her assigned to UNIT, and the Brigadier asked her to be the Doctor's assistant. She was trained in cryptology, escapology, safebreaking and explosives. She made a good impression on her first assignment by getting hypnotised by the Master and trying to explode a bomb in UNIT HQ. She left to get married and go down the Amazon.

Role reprises:

• Planet Of The Spiders
• The Five Doctors

Information:

• Home: London, Earth (20th century)

Captain Yates was assigned to UNIT to be the Brigadier's right hand man. He later betrayed UNIT by helping Sir Charles Grover launch his Operation Golden Age. After he was exposed the Brigadier gave him the chance to take extended sick leave and resign from UNIT.

Role reprises:

• The Five Doctors

Information:

• Family: Aunt Lavinia
• Home: London, Earth (20th century)
• Occupation: Journalist

Sarah Jane Smith was a journalist for the Metropolitan magazine, and stowed away in the TARDIS after sneaking in to a scientific establishment in the pursuit of a story.

She was on the point of leaving the Doctor when he was summoned to Gallifrey. Sarah changed her mind and wanted to stay, but the Doctor dropped her close to her own time and somewhere that was not South Croydon.

She witnessed the regeneration from Jon Pertwee to Tom Baker.

Other appearances by Ian Marter:

• Andrews in Carnival Of Monsters

Information:

• Home: London, Earth (20th century)
• Occupation: Navy Doctor

Harry Sullivan was tricked into the TARDIS by the newly regenerated Doctor, and left at his first opportunity. During his travels he met up with Daleks, Cybermen, and Sontarans. He was UNIT's medical officer, and was the only UNIT officer to seriously travel in the TARDIS.

Information:

• Home: Human colony on a future world

Leela was a savage, part of the Sevateem, who refused to believe that Xoanon was a god. Her favourite weapon was the Janis thorn. Leela joined the crew of the TARDIS by sneaking in and causing the TARDIS to take off. Whilst on Gallifrey she fell in love with Commander Andred, and stayed behind with K-9 Mark I.

Role reprises:

• K-9 And Company
• School Reunion

Information:

• Home (Mark I): Bi-Al Foundation
• Home (Mark II): The TARDIS
• Home (Mark III): London, Earth (20th century)
• Home (Mark IV): London, Earth (21st century)

K-9 joined the TARDIS when his original owner, Professor Marius, was unable to bring him back to Earth due to luggage limits. K-9 was a robotic dog which functioned as a mobile computer/defence system. K-9 Mk I stayed with Leela on Gallifrey, the Doctor produced a K-9 Mk II, which remained in E-Space with Romana. K-9 Mk III was a gift from the Doctor to Sarah Jane Smith. K-9 Mk IV was also a gift from the Doctor to Sarah Jane Smith when K-9 Mk III was destroyed in an explosion.

Other appearances by Mary Tamm:

• Princess Strella in The Androids Of Tara

Information:

• Home: Gallifrey

Romana, a Time Lady from Gallifrey, joined the TARDIS at the behest of the White Guardian, who was masquerading as the President of the High Council on Gallifrey. She stayed through the Key to Time season, and was on occaisons a good foil for Tom Baker's Doctor's arrogance.

Other appearances by Lalla Ward:

• Princess Astra in The Armageddon Factor

Romana II was the regenerated form of Romana I (above). She left the TARDIS with K-9 Mk II to assist the Tharils in E-Space. Lalla Ward and Tom Baker were once married.

Role reprises:

• Time-Flight
• The Caves Of Androzani

Information:

• Home: Alzarius (E-Space)

Adric, a maths genius, stowed away aboard the TARDIS in Full Circle to join the crew. He witnessed Tom Baker's regeneration into Peter Davison. He was killed when he stayed behind to rescue a ship on collision course with prehistoric Earth. His rescue failed.

Other appearances by Sarah Sutton:

• Ann Talbot in Black Orchid

Information:

• Family: Father Tremas, Mother Kassia
• Home: Traken

Nyssa joined the TARDIS at Logopolis after her home planet of Traken was destroyed by The Master. (The Master also inhabited her father's body.) She left to help the victims of Lazza's disease at the Terminus Hospital, at the origin of the universe. She witnessed the regeneration of Tom Baker into Peter Davison.

Other appearances by Janet Fielding:

• Kamelion in The King's Demons

Information:

• Family: Aunt Vanessa, Cousin Colin Frazer, Grandfather Andrew Verney
• Home: Brisbane, Austrailia, Earth (20th century)
• Occupation: Air Hostess

Tegan stumbled into the TARDIS looking for help with her car. She left once to resume her job, but rejoined the crew when she found out she had been fired. She left after a particularly nasty battle with the Daleks took the fun out of travelling. She witnessed the regeneration of Tom Baker into Peter Davison.

Role reprises:

• The Caves Of Androzani

Information:

• Family: Brother Malkon
• Home: Trion

Turlough joined the TARDIS at the behest of the Black Guardian with the task of killing the Doctor. Over three stories, he grew to enjoy and respect the Doctor and was unable to kill him. He left to return to his home planet, Trion.

Role reprises:

• The Caves Of Androzani

Information:

• Home: Found on Xeraphos

Kamelion was an android that was able to disguise itself as anyone it's controller wanted it to be. It was found by the Master who controlled it until it joined the TARDIS to escape the Master's influence. Kamelion only appeared a few times, despite being aboard the TARDIS. Kamelion was killed at his own request by the Doctor.

Other appearances by Nicola Bryant:

• Lord Kiv in The Trial Of A Time Lord - Mindwarp

Information:

• Family: Stepfather Professor Howard Foster
• Home: California, America, Earth (20th century)

Peri was rescued by Turlough after jumping into a lake. She travelled with the Doctor for some time before having the mind of Lord Kiv of Thoros Beta replace her own.

Her fate is not properly known: during the Doctor's trial evidence was fabricated. One suggestion is that she was killed by Ycarnos after Kiv's mind was transplanted. The other suggestion is that she was rescued by Ycarnos and now lives as his queen.

She witnessed the regeneration from Peter Davison into Colin Baker.