Curiosidades

Culp and Cosby improvised most of their banter. They also ended up rewriting much of their dialogue as they were often dissatisfied with the scripts.

Culp wrote seven episodes. According to Culp, those seven episodes were the only ones that were filmed exactly as written.

Bill Cosby and Robert Culp remained good friends after production of the series ended.

The first American dramatic TV series to feature a black actor in a lead role. Scripts were peppered with unique lingo. One catchphrase, "wonderfulness," became popular and was later used by Bill Cosby for the title of one of his comedy albums.

Bill Cosby's character, Alexander Scott, was originally intended to be an older mentor to Robert Culp's trainee agent, Kelly Robinson. Executive producer Sheldon Leonard cast Cosby in the role after seeing one of his routines (Scott was originally intended to be a Caucasian). Due to this casting change, the writers thought an occasional reference to Cosby's race would be a necessity, given the tumult of the times. In an early episode, "Danny Was a Million Laughs", guest star Martin Landau's character makes a racial joke at Scott's expense. Culp and Cosby demanded that no more racial jokes be done, and none were for the run of the series.