The Avengers Square Root of Evil (Season 1, Episode 3)
TV-14
TV Episode | 52 min | Action, Comedy, Crime

The Avengers

Square Root of Evil (Season 1, Episode 3)

TV-14

TV Episode | 52 min | Action, Comedy, Crime

Steed impersonates a master forger to get evidence against a gang of vicious criminals. Steed well-laid plans are thrown for a loop when the forger's girlfriend shows up demanding to see him.

Director

Don Leaver

Writer

Richard Harris (teleplay)

Producer

Leonard White

Production Designer

Patrick Downing

See all filmmakers & crew (15)

Edit Released

Updated Jan 21, 1961

Release date

Jan 21, 1961 (United Kingdom)

Awards

Series awards

Nominated for 4 Primetime Emmy Awards. Another 1 win & 1 nomination

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Cast	+ Add Cast
10 cast members

Name	Known for
Ian Hendry Dr. David Keel Dr. David Keel See fewer	Get Carter (1971)
Patrick Macnee John Steed John Steed See fewer	The Avengers (1961)
Ingrid Hafner Carol Wilson Carol Wilson See fewer	The Avengers (1961)
Cynthia Bizeray Secretary Secretary See fewer	The Avengers (1961)
Heron Carvic Five Five See fewer	The Avengers (1961)
Delphi Lawrence Lisa Lisa See fewer	The Man Who Could Cheat Death (1959)
George Murcell Hooper Hooper See fewer	Cutthroat Island (1995)
Alex Scott The Cardinal The Cardinal See fewer	Romper Stomper (1992)
Vic Wise Jackie Warren Jackie Warren See fewer	The Madame Gambles (1951)
John Woodvine Bloom Bloom See fewer	An American Werewolf in London (1981)