A human with a troubled past, Ace (real name Dorothy) was a companion to the Seventh Doctor, Sylvester McCoy. She had a talent with chemistry and carried around a chemical called 'Nitro-9' as a weapon. Due to her past, Ace developed a tough exterior - though she had a soft heart and was very protective of the Doc.
Sophie Aldred's had a steady if rather dull TV and radio career since Doctor Who. She's appeared in many children's TV shows and even acted in two episodes of EastEnders. She's also written a book about her time as Ace. She is married with two sons, and no longer carries chemical weapons around. Phew!
Steven was one of the First Doctor's (William Hartnell) companions. A determined young man, who favoured brawn over brains, he wasn't afraid to argue with The Doctor when he felt it necessary.
After Doctor Who Peter Purves presented children's fave Blue Peter from 1967 until 1978. A dog lover, he appeared as a presenter for the BBC at Crufts, and acted as a judge on reality series The Underdog Show. He's directed several pantos and once had an affair with Valerie Singleton, the devil!
An investigative journalist, she first appeared with the Third Doctor (Jon Pertwee) and became something of a feminist icon due to her brains, independence and ability to speak her mind.
With the resurgence of the Who phenomenon she gained popularity again, starring in spin-off show The Sarah Jane Adventures. She was married to actor Brian Miller, who used to provide voices for the Daleks. Sadly, Elisabeth Sladen passed away in April 2011 at the age of 63.
Zoe may have looked like a sweet little girl, but she was a woman with a phenomenal brain. A mathematician with a photographic memory, she was an assistant to the Second Doctor, Patrick Troughton. She could be unemotional, and would often come across as a tad smug. Well we would too, if we were geniuses.
Wendy Padbury's never left Doctor Who behind. After leaving the TV show she played another Doctor's assistant called Jenny in a stage show. She currently works as an actor's agent - representing previous Doctor Who actors Colin Baker and Mark Strickson. She also discovered new Doctor Matt Smith while he was in youth theatre. So realistically, we owe Wendy for the amazing Matt Smith’s Doctor. Thanks Wendy!
Mel accompanied the Sixth and Seventh Doctors (Colin Baker and Sylvester McCoy) and was one of the few assistants who were present when a Doctor regenerated. A bright and bubbly personality, she had an optimistic outlook and was nifty with the equipment, being a trained computer programmer.
Bonnie Langford had already found fame as a child star. After Doctor Who she became a regular in panto and had brief TV appearances, including The Hot Shoe Show with Wayne Sleep. Most recently she appeared in Dancing on Ice which resurrected her career and she's since starred in Chicago. She now lives in the United States.
Foxy Leela was part of a savage tribe but decided to settle down and travel with the Fourth Doctor (Tom Baker). She resisted quite a lot of the Doc's attempts to 'civilise' her though, and kept her wardrobe of mini-skirts made of animal pelts. She had a strong friendship with K-9.
Louise Jameson has been in Emmerdale, Tenko, Bergerac and found a new set of fans when she played Italian matriarch Rosa di Marco in EastEnders. Jameson volunteered as a prison visitor and persuaded Leslie 'Den Watts' Grantham to start acting after meeting him when he was banged up for murder in the 1970s.
A posh jewellery thief, Lady Christina travelled with the Tenth Doctor (David Tennant), though he refused her request to become his full-time companion. Charismatic and addicted to danger, Lady Christina also filled a pair of leather trousers rather well (she would have been an amazing Catwoman).
Michelle Ryan is forging quite a decent career after finding fame as the slightly vacant Zoe Slater in EastEnders. She's appeared in light comedy Mr Eleven as well as multiple films, including Huge, No Ordinary Trifle, and Cockney Zombies.
Josephine 'Jo' Grant was an intelligence officer who assisted the Third Doctor (Jon Pertwee). She was something of an action girl, kicking arse alongside the Doc and trying to dispel the view that she was a dumb blonde. Tenacious and courageous Jo left the Doctor to get married to a Professor and head off to the Amazon.
Katy Manning courted controversy when she posed naked next to a Dalek a few years after she finished playing Jo. She also moved to Australia (the two events were not connected) where she has continued to act on stage and screen, including the theatre version of 'Allo 'Allo in 2007, in which she played Yvette.
There have been four versions of K-9 over the years. The first appeared with the Fourth Doctor, Tom Baker, as his faithful dog sidekick. Programmed to take orders from its master, K-9 sometimes took things a little too literally, often to comic effect.
John Leeson voiced most of K-9's appearances on the show. He's also been in Blake's 7 and played Bungle, the giant bear in Rainbow. He's a regular continuity announcer on Channel 4 and still voices K-9 when the little doggie robot shows his rotating ears in public.
Perpugilliam 'Peri' Brown accompanied the Fifth and Sixth Doctors (Peter Davison and Colin Baker). An American botanist, she thoroughly enjoyed her travels with the Doc, though the bantering between her and the Sixth Doctor was often quite tense. Mind you, he did once try to strangle her during a period of madness.
Nicola Bryant headed to the West End after Doctor Who and she's pretty much remained a theatre actress ever since, apart from occasional forays into audio plays and a role in Blackadder's Christmas Carol. She's also appeared in Casualty, Doctors and My Family.
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