as Colonel #1 (archive footage)

as District Attorney Milton

as Doctor (uncredited)

as Col. Bert Wayne

as Benjamin Frank Mahoney, President Ryan Airlines Co.

as Captain

as Sen. Black

as Mr. Coleman

as Dr. Wyndham

as Eloise's Lawyer

as Professor

as General Timberidge

as Buck Slavin

as Rhodes

as Major Hiram Prescott

as John T. McGrane

as Oscar the Butler

as Dr. Orva

as Professor Victor Newcole

as Specialist #1

as Larkin

as Munsey (uncredited)