Currently available on 2 streaming services.

Top Cat - watch online: stream, buy or rent

You are able to buy "Top Cat" on Apple TV, Amazon Video as download.

Cast

Leo De Lyon
Spook (voice)
Allen Jenkins
Officer Charlie Dibble (voice)
Arnold Stang
Top Cat (voice)
Maurice Gosfield
Benny the Ball (voice)
Marvin Kaplan
Choo Choo (voice)
John Stephenson
Fancy-Fancy (voice)