Frank Converse

as Thad Grant

as James Schuyler (1 episode)

as Dr. Gibbs

as Bill Davenport (1 episode)

as Mr. Morrissey

as Dr. Jordan (2 episodes)

as General Jackson (1 episode)

as John Eastham

as Cooper

as Wayne Hardy (1 episode), as Lyle Christopher (1 episode), as Mr. Kelly (1 episode), as Stable Manager (1 episode), as Gary Wallace (1 episode)

as Peter Morgan (2 episodes)

as Charley Haggerty

as John Hamilton

as Nils Anderson

as Trader

as Morgan Harris

as Morgan Harris (4 episodes)

as Greentree

as Guthrie Browne (1 episode)

as Everett Buffum (1 episode)

as Lewis Berryman

as Larry Miller