Jacqueline Pearce is a British actress best know for playing Servalan in all four series of Blakes 7.

Jacqueline Pearce was born in Woking in Surrey and trained at the British stage school RADA and at Lee Strasberg's Actors Studio in Los Angeles.

Pearce starred in two Hammer horror films: The Plague of the Zombies and The Reptile. Other film roles include: White Mischief, How to Get Ahead in Advertising, Princess Caraboo and Don't Raise the Bridge, Lower the River.

In 1978 she was cast in the Terry Nation series Blakes 7 as Supreme Commander Servalan, the main villain throughout the series.  

She appeared in Doctor Who in 1985 playing Chessene, an augmented Androgum. She has more recently been associated with Doctor Who through her appearance in The Fearmonger as Sherilyn Harper, an audio drama by Big Finish Productions, and as Admiral Mettna in the webcast story Death Comes to Time.

Pearce has also made frequent guest appearances in TV series such as: Danger Man, The Avengers, Man in a Suitcase, Public Eye, Callan, Dead of Night, Special Branch, The Zoo Gang, Spy Trap and The Young Indiana Jones Chronicles.

Edward Evans was a British film and television actor.

During World War II, he served with the British Army in Italy and North Africa, reaching the rank of Captain.

Evans starred as Bob Grove in the popular 1950s soap opera The Grove Family, and played the role of Lionel Petty in Coronation Street during (1965-66). 

He played Ted Moss in the Doctor Who serial Image of the Fendahl.

In a long career he also appeared in Heart of the Country, The Bil, Shine on Harvey Moon, Suez 1956, George & Mildred, Z Cars, Mr. Big, One-Upmanship, Poldark, Out of Season, The Gathering Storm, Father Brown, BBC Play of the Month, Crown Court, Within These Walls, Play for Today, Whodunnit?, The Fenn Street Gang, Comedy Playhouse, Dixon of Dock Green, Till Death Us Do Part, The Regiment, Tales from the Crypt, Freewheelers, Sunday Bloody Sunday, Out of the Unknown, The Dick Emery Show, Doomwatch, 10 Rillington Place, The Main Chance, Steptoe and Son, Dad's Army, Confession, One More Time, Two a Penny, Thirty-Minute Theatre, Paul Temple, Armchair Theatre, Softly Softly, The Saint, Till Death Us Do Part, The Company of Five, The Tyrant King, The Expert, The Revenue Men, Man in a Suitcase, The Gamblers, No Hiding Place, Hancock's, The Wednesday Play, Sir Arthur Conan Doyle, Adam Adamant Lives!, The Troubleshooters,, Cluff, ITV Play of the Week, Public Eye, Blind Corner, Gideon's Way, Mike, Catch Hand, The Villains, Compact, First Night, The Victorians, Suspense, The Human Jungle, The Plane Makers, The Birth of a Private Man, Reach for Glory, The River Flows East, Garry Halliday, Two and Two Make Six, The Winter's Tale, Barbara in Black, BBC Sunday-Night Play, Maigret, Jacks and Knaves, You Can't Win, About Religion, ITV Television Playhouse, Alcoa Presents: One Step Beyond, On Trial, Deadline Midnight, The Four Just Men, The Trials of Oscar Wilde, The Men from Room 13, The Vagrant Heart, The Bridal Path, The Naked Lady, Sunday's Child, William Tell, The Man Upstairs, Duty Bound, The Grove Family, The Jack Benny Program, Assignment Foreign Legion, Pantomania, or Dick Whittington, The Angel Who Pawned Her Harp, Man of the Moment, It's a Great Day, Escape by Night, Valley of Song, Turn the Key Softly, Grand National Night, Deadly Nightshade, Cosh Boy, Appointment in London, The Yellow Balloon, Time Bomb, Little Red Monkey, BBC Sunday-Night Theatre, I Believe in You, The Secret People, Mr. Denning Drives North, Hindle Wakes, The Case of Charles Peace, The Small Voice, London Belongs to Me

Bill Mitchell  played a Newscaster in the 1973 Doctor Who television story Frontier in Space.

he also voiced Zor in the 1976 Argo Records audio story Doctor Who and the Pescatons.

Also worked on Super Gran, Riding High, The Bitch, Outer Touch, Ubu, The Strange Case of the End of Civilization as We Know It, The Hanged Man, The Beast Must Die, Billion Dollar Brain, You Only Live Twice, Finders Keepers, Man in the Middle, The Sentimental Agent, Two and Two Make Six, Night of the Eagle, BBC Sunday-Night Theatre, Folio, A Documentary on the Making of 'Gore Vidal's Caligula'

Neville Simons played Frank Michaels in the Doctor Who serial The Ambassadors of Death.

Also worked on Whoops Baghdad!, The Tyrant King

Walter Fitzgerald was an English character actor.

Born in the Keyham district of Plymouth, Devon. He married his first wife Rosalie Constance Grey in 1924. His 2nd marriage was to Angela Kirk in 1938 and they had 3 sons (Jonathan, Timothy and Charles) and 1 daughter (Julia). Toured with Sir John Martin-Harvey, Sir Seymour Hicks. He was understudy to Sir Gerald du Maurier 1928-29. Fitzgerald appeared in films from the 1930s, often in 'official' roles (policemen, doctors, lawyers). He appeared on British television in the 1950s and 1960s before his retirement. 

A former stockbroker, British actor Walter Fitzgerald was in his late 20s when he began his theatrical training at RADA. Fitzgerald made his professional stage bow in 1922 and his first film appearance in 1930. His best-remembered film roles include Simon Fury in Blanche Fury (1946), Dr. Fenton in The Fallen Idol (1948) and Squire Trelawny in Treasure Island (1950). Walter Fitzgerald made his penultimate film appearance in the opening scenes of H.M.S. Defiant (1962), as the admiral who listens to—and then disregards—ship's captain Alec Guinness' complaints about maritime cruelty.

_{Biography from the Wikipedia article, licensed under CC-BY-SA}