Robert Martin Culp was an American actor and screenwriter widely known for his work in television. Culp earned an international reputation for his role as Kelly Robinson on I Spy (1965–1968), the espionage television series in which co-star Bill Cosby and he played secret agents. Before this, he starred in the CBS/Four Star Western series Trackdown as Texas Ranger Hoby Gilman in 71 episodes from 1957 to 1959. The 1980s brought him back to television as FBI Agent Bill Maxwell on The Greatest American Hero. Later, he had a recurring role as Warren Whelan on Everybody Loves Raymond, and was a voice actor for various computer games, including Half-Life 2. Culp gave hundreds of performances in a career spanning more than 50 years.

I Spy is an American secret-agent adventure television series that ran for three seasons on NBC from September 15, 1965, to April 15, 1968, and teamed US intelligence agents Kelly Robinson and Alexander "Scotty" Scott, traveling undercover as international "tennis bums." Robinson poses as an amateur with Scott as his trainer, playing against wealthy opponents in return for food and lodging. Their work involved chasing villains, spies, and beautiful women.