UFO Characters - The Square Triangle

Teleplay by: David Tomblin
Director: Jeremy Summers
First Air Date: Dec 09, 1970

An alien unwittingly interferes in a murder plot.

Commander Ed Straker

First Episode: Identified
Other Episodes: All
Played By: Ed Bishop
134193

Colonel Paul Foster

First Episode: Exposed
Other Episodes: Survival, Conflict, The Dalotek Affair, Ordeal, Court Martial, Close Up, The Responsibility Seat, E.S.P., Sub Smash, The Sound of Silence, The Cat With Ten Lives, Destruction, The Man Who Came Back, The Psychobombs, Reflections in the Water, Timelash, Mindbender, The Long Sleep
Played By: Michael Billington
174213

Colonel Alec Freeman

First Episode: Identified
Other Episodes: Computer Affair, Flight Path, Exposed, Survival, Conflict, The Dalotek Affair, A Question of Priorities, Ordeal, Court Martial, Close Up, Confetti Check A-OK, The Responsibility Seat, E.S.P., Kill Straker!, Sub Smash
Played By: George Sewell
008162

Space Intruder Detector SID (voice)

First Episode: Identified
Other Episodes: All
Played By: Mel Oxley
117

Lt. Nina Barry

First Episode: Identified
Other Episodes: Computer Affair, Flight Path, Exposed, Conflict, The Dalotek Affair, A Question of Priorities, Ordeal, Confetti Check A-OK, The Responsibility Seat, E.S.P., Sub Smash, The Sound of Silence, The Cat With Ten Lives, Destruction, The Man Who Came Back, Reflections in the Water, Timelash
Played By: Dolores Mantez
153356

Miss Ealand

First Episode: Identified
Other Episodes: Exposed, Conflict, A Question of Priorities, Court Martial, The Responsibility Seat, E.S.P., Destruction, Timelash, Mindbender
Played By: Norma Ronald
003

Lt. Gay Ellis

First Episode: Identified
Other Episodes: Computer Affair, Flight Path, A Question of Priorities, Ordeal, Close Up, The Responsibility Seat, E.S.P., Destruction
Played By: Gabrielle Drake
001145

Lt. Keith Ford

First Episode: Identified
Other Episodes: Computer Affair, Flight Path, Exposed, The Dalotek Affair, A Question of Priorities, Ordeal, Court Martial, Close Up, Confetti Check A-OK, The Responsibility Seat, E.S.P.
Played By: Keith Alexander
119201

(voice only) Keith Ford

Played By: Robert Rietty
nophoto

Lt. Joan Harrington

First Episode: Identified
Other Episodes: Computer Affair, Flight Path, Exposed, The Dalotek Affair, Ordeal, Close Up, The Responsibility Seat, E.S.P., Destruction
Played By: Antonia Ellis
002

Lt. Ayshea Johnson

First Episode: Identified
Other Episodes: Flight Path, Exposed, Conflict, The Dalotek Affair, A Question of Priorities, Confetti Check A-OK, The Responsibility Seat, The Sound of Silence, The Cat With Ten Lives, The Man Who Came Back, The Psychobombs, Reflections in the Water, Timelash, Mindbender
Played By: Ayshea Brough
188387

Lew Waterman

First Episode: Identified
Other Episodes: Computer Affair, The Dalotek Affair, Ordeal, Court Martial, The Responsibility Seat, Sub Smash
Played By: Gary Myers
151139

SHADO Mobile Navigator

Played By: Hugo Panczak
252

SHADO Operative

First Episode: Identified
Other Episodes: Computer Affair, Exposed, Conflict, The Dalotek Affair, A Question of Priorities, Ordeal, Court Martial, Close Up, The Responsibility Seat, E.S.P., Kill Straker!, The Sound of Silence, The Cat With Ten Lives, Destruction, The Psychobombs, Reflections in the Water, Timelash, Mindbender, The Long Sleep
Played By: Maxwell Craig
332

SHADO Operative

Played By: uncredited
249

SHADO Operative

Played By: uncredited
250

SHADO Operative

Played By: uncredited
255

Alien

Played By: Anthony Chinn
253

Cass Fowler

Played By: Patrick Mower
258

Mitchell

Played By: Godfrey James
Notes: Game Warden, Sultan's master
Character deceased
254

Jack Newton

Played By: Allan Cuthbertson
Notes: Character probably deceased
248

Liz Newton

Played By: Adrienne Corri
257

Sultan

Played By: uncredited
251

* Screen credits or other sources have identified this actor as playing this role. However, the IMDB database does not confirm this.
** IMDB database indicates this actor was in this episode, but the character does not seem to appear onscreen or cannot be identified.

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