List of The Avengers episodes

This is an episode list for the 1960s British television series The Avengers. The series was aired in Britain, on ITV, between 1961 and 1969.

The first four series were made in black-and-white; the first three were pre-recorded on videotape (except where noted) with occasional filmed inserts. Beginning with series 4 the series moved to all-film production, shot using the single-camera method. From series 5 onwards, the episodes were filmed in colour.

Note: The only complete episodes known to exist complete from the debut series are Girl on the Trapeze (which does not feature John Steed), The Frighteners and Tunnel of Fear, plus the first 20 minutes – the first reel – of the premiere episode, Hot Snow, have been rediscovered. The most recent discovery was in 2016, when Tunnel of Fear was found intact in a private collection.

Cast: Unless noted in the table below, all episodes in the first series feature Ian Hendry (as Dr. David Keel) and Patrick Macnee (as John Steed).

Note: Following series 1 a lengthy Equity actor's strike prevented development of the second series, and Ian Hendry decided to depart the show. When the show eventually returned the premise had been considerably retooled, with Macnee moved to the lead role, accompanied by an attractive and highly capable female sidekick, and a much more whimsical tone.

Cast: Series 2 featured Patrick Macnee as John Steed in all 26 episodes. Either Jon Rollason (as Dr. Martin King) or Julie Stevens (as Venus Smith) accompanied him as noted in the table; all other episodes feature Honor Blackman (as Dr. Cathy Gale).

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