Carter Nash was a chemist in a police department who discovered a liquid which could turn him into Captain Nice, an odd sort of superhero: very shy and dominated by his mother. Captain Nice flew (he feared heights) in his tattered leotards, fighting bad guys because his mother told him to do so.

Captain Nice (1967)
Overview
Creator
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William Daniels
Carter Nash (15 episodes)

Alice Ghostley
Mrs. Nash (15 episodes)

Ann Prentiss
Candy Kane (15 episodes)

Liam Dunn
Mayor Finney (15 episodes)

Bill Zuckert
Chief Segal (15 episodes)

Byron Foulger
Mr. Nash (15 episodes)

Sabrina Scharf
Miss Schneider (15 episodes)

John Dehner
(2 episodes)

Larry D. Mann
(1 episode)