Judy Pace appeared in film and TV, appearing in the TV show The Young Lawyers and the film Frogs, and Cleavon Little made nightclub performances plus films afterwards: the most famous role he did was as Bart in the Mel Brooks comedy Blazing Saddles. Another person who debuted was Redd Foxx, and he proved that even a veteran night club star up in age can do movies as well, leading him to be considered for the TV Show Sanford and Son.
Bart
Mel Brooks