The Avengers was a British espionage television series

The Avengers was a British espionage television series, created in 1961, that ran for 161 episodes until 1969. It initially focused on David Keel (Ian Hendry), aided by John Steed (Patrick Macnee). Hendry left after the first series; Steed then became the main character, partnered with a succession of assistants. His most famous assistants were intelligent, stylish, and assertive women: Cathy Gale (Honor Blackman), Emma Peel (Diana Rigg), and Tara King (Linda Thorson).

The series screened as one-hour episodes for its entire run. The first episode, “Hot Snow”, aired on 7 January 1961. The final episode, “Bizarre”, aired on 21 April 1969 in the United States, and on 17 May 1969 in the United Kingdom.