Bertie Cortez

as Louis Provençal (1 episode)

as Professor Kepler (voice)

as Kusak

as Washington Restaurant's Manager

as Pulaski

as Ring Master (1 episode), as Dr. Cernaveda (1 episode)

as Capitaine Cosmo

as Newspaper Deskman

as Javert (1 episode)

as Itzhak Mendelson (2 episodes)

as Ambrose (15 episodes)

as Roberto Canovas

as (voice)

as Assante

as Bonhomme Scratch o'Scratch

as Mazetti