as Jonathan Clark
as Frank Duncan
as Wes Bonell
as Jud Ellis
as Troy Barrett
as Wes Bonnell (archive footage) (uncredited)
as Dr. Frank Addison
as Sgt. Brock
as Mr. Stern
as Capt. Beaton
as John Cockerill
as Captain Charles Laverne
as Verne Williams
as Agent Casey Reed
as Johnny Kisco
