Parnell

Clark Gable

— Charles Stewart Parnell

Myrna Loy

— Katie O'Shea

Edna May Oliver

— Aunt Ben Wood

Edmund Gwenn

— Henry Campbell

Alan Marshal

— Captain William 'Willie' O'Shea

Donald Crisp

— Michael Davitt

Billie Burke

— Clara Wood

Berton Churchill

— The O'Gorman Mahon

Donald Meek

— Nicholas Daniel Murphy

Montagu Love

— William Ewart Gladstone

Byron Russell

— Timothy Michael Healy

Brandon Tynan

— John Edward Redmond

Phyllis Coghlan

— Ellen

Neil Fitzgerald

— Richard Pigott

George Zucco

— Sir Charles Arthur Russell

J. Farrell MacDonald

— Irish Laborer (uncredited)

Eily Malyon

— Irish Woman with Dead Child (uncredited)

Robert Adair

— Officer

Erville Alderson

— Father

King Baggot

— Man in Office

Frank Baker

— George Davis

Marion Ballou

James Blaine

— Irishman

Wade Boteler

— Irish Cop

Tyrone Brereton

— House of Commons Member

Randolph Churchill

Wallis Clark

— Doctor

D'Arcy Corrigan

— Irish Party Committeeman

George Cowl

Jules Cowles

— Man in Office