The Square Triangle

"**The Square Triangle**"
"The Square Triangle"
UFO episode
Episode no.	Episode 10
Directed by	David Lane
Written by	Alan Pattillo
Editing by	Harry MacDonald
Production code	11
Original air date	9 December 1970
Guest appearances
	Adrienne Corri as Liz Newton; Patrick Mower as Cass Fowler; Allan Cuthbertson as Jack Newton; Anthony Chinn as Alien; Godfrey James as Mitchell, game warden; Hugo Panczak as SHADO Mobile navigator;
Episode chronology
← Previous; "Destruction"	Next →; "Close Up"
	List of episodes

"The Square Triangle" is the tenth episode aired of the first series of UFO - a 1970 British television science fiction series about an alien invasion of Earth. The screenplay was written by Alan Pattillo and the director was David Lane. The episode was filmed between 3 September and 15 September 1969 and aired on the ATV Midlands on 9 December 1970. Though shown as the ninth episode, it was actually the eleventh to have been filmed.^[1]^[2]

The series was created by Gerry Anderson and Sylvia Anderson with Reg Hill, and produced by the Andersons and Lew Grade's Century 21 Productions for Grade's ITC Entertainment company.^[3]

^ "UFO Episode Guide - The Square Triangle". Fanderson. Archived from the original on 8 October 2017. Retrieved 23 October 2017.
^ "UFO Characters - The Square Triangle". SHADO Library. Retrieved 23 October 2017.
^ "Underappreciated TV: UFO". Den of Geek. 4 January 2008. Retrieved 23 October 2017.

[Fanderson-1] "UFO Episode Guide - The Square Triangle". Fanderson. Archived from the original on 8 October 2017. Retrieved 23 October 2017.

[2] "UFO Characters - The Square Triangle". SHADO Library. Retrieved 23 October 2017.

[3] "Underappreciated TV: UFO". Den of Geek. 4 January 2008. Retrieved 23 October 2017.

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