Cast
Ian Hendry as Dr. David Keel (S1)
Patrick Macnee as John Steed
Honor Blackman as Catherine Gale (S2 & S3)
Diana Rigg as Emma Peel (S4 & S5)
Linda Thorson as Tara King (S6)

Narration

Extraordinary crimes against the people, and the state, have to be avenged by agents extraordinary.
Two such people are John Steed, top professional, and his partner Emma Peel, talented amateur.
Otherwise known as... The Avengers!