Helen Drummond
Dennis Riordan
Cathleen O'Brien
Lord Athleigh
Gerald Preston
O'Rourke
Burke
Jerry (as Ra Hould)
Ryan
Rooney (as P. J. Kelly)
Connor
Patrick Callahan
Casey
Colonel Loder
Thornton
Perrins
Crump
Hall
Hawkins
Murphy
Humphries
Sean O'Brien (as Theodore Von Eltz)
Alroyd
Mike - I.R.A. Patriot (uncredited)
Irish Boy (uncredited)
Man (uncredited)
Mrs. Moll - Reception Guest (uncredited)
First Doctor (uncredited)
Mr. Moll - Reception Guest (uncredited)
Sean's I.R.A. Friend (uncredited)
Reception Guest (uncredited)
I.R.A. Patriot (uncredited)
Mrs. Macy - Helen's Maid (uncredited)