• 
  Clark Gable

  Parnell
• 
  Billie Burke

  Clara
• 
  Myrna Loy

  Katie
• 
  Montagu Love

  Gladstone
• 
  Berton Churchill

  The O'Gorman Mahon
• 
  Phyllis Coghlan

  Ellen (as Phillis Coghlan)
• 
  Donald Crisp

  Davitt
• 
  Neil Fitzgerald

  Pigott / Dr. Gillespie

• 
  Edmund Gwenn

  Campbell
• 
  Alan Marshal

  Willie
• 
  Donald Meek

  Murphy
• 
  Edna May Oliver

  Aunt Ben
• 
  Byron Russell

  Healy
• 
  Brandon Tynan

  Redmond
• 
  George Zucco

  Sir Charles Russell