Claude Rae

as Dean(1 ep)

as Reporter

as Doctor

as Dawkins

as Dr. Conners

as General Thaddeus Ross (voice)(9 eps)

as Buffalo Bill Cody / King Arthur (voice)

as Warren Marke, Peter's Father

as Young Postmaster

as Howdy Doody (voice) / Phineas T. Bluster (voice) / Mr. X (voice)(2 eps)