Herbert Rudley

as Isambard de la Pierre

as Theodore "Ted" Mortimer

as Nate Perrick

as Secret Service Chief Samuels

as Capt. Colclough

as Sgt. Eddie Porter

as Clay Farrell Sr.

as Dr. Gordon Ramsay

as Gov. William Clayton

as Captain of the Guard

as Mr. Endicott

as Emperor Tiberius

as George Durell

as Edward Nelson

as Ben Farraday

as Charles Noymann

as Henry Ritchie

as Gorman

as Mark Gates

as General Sloat

as Jeremiah Breen