The theme song "Keep Your Eye On The Sparrow" was initially instrumental. In later seasons, lyrics were added that were sung by Sammy Davis, Jr.
This show was originally intended as a continuation of the television series Toma (1973), with Robert Blake replacing Tony Musante as Detective David Toma. When Blake balked at taking over an established role, a new series was created for him instead.
Baretta had a pet white Cockatoo named Fred. One of Fred's favorite lines was "Abandon ship! Abandon ship!"
Baretta's car was a 1966 Chevy Impala.
After personal conflict with Robert Blake on the set, Dana Elcar was replaced by Edward Grover when the series returned for its second season.