as Grandfather Milo(1 ep)
as Louis Pasteur
as (voice)
as Melzar(4 eps)
as Mr. Serpico
as Dr. Wolff
as Charlie Kingman(25 eps)
as Professor Estabrook
as Yuko Takuma(1 ep)
as Philip Lo(1 ep)
as Zoltan(1 ep)
as Mr. Thaler, Thrush Boss
as Edmund Constantine(1 ep)
as Rudolf Kurtz(1 ep)
as Premier Miguel Fuego(1 ep)
as Smerlov(1 ep)
as Mr. Allison
as Dr. Hans Von Etske(1 ep)
as Lars Christian(1 ep)
as Dr. Sordjano
as Argus Diavolos
as Bacco
as Frank Genna(1 ep)
as Ray 'Goose' Gander(1 ep)
as Felix Ducotel(1 ep)
as General De Cruz(1 ep)
as Mr. Ferguson(1 ep)
as Homer Doubleday(1 ep)
as Arab(1 ep)
as Mr. Gioia
as Julio Infante
as Stefan Bregornick(1 ep)
as Joey(1 ep)
as Ankoritis
as Lazaro (uncredited)
as "Little Guy" Decola