In 1997, Culp appeared on an episode of Dick Van Dyke’s “Diagnosis Murder” series with other actors who starred in 1960s espionage series. From left are Barbara Bain (“Mission: Impossible”), Patrick MacNee (“The Avengers”), Dick Van Dyke, Robert Culp and Robert Vaughn (“The Man From U.N.C.L.E.”). (Reed Saxon / Associated Press)