- Wally Howe - Asylum Guard (uncredited)
- James T. Kelley - Card-Playing Father (uncredited)
- 'Auntie' Mackay - Undetermined Secondary Role (uncredited)
- Florence Mayon - Card Player's Daughter (uncredited)
- Oscar Morgan - Undetermined Secondary Role (uncredited)
- Charles Stevenson - Asylum Guard (uncredited)
- Anna Townsend - Jamison's Mother (uncredited)
- Dorothy Vernon - Restaurant Hostess (uncredited)
- Joy Winthrop - Undetermined Secondary Role (uncredited)
- Fred C. Newmeyer
- Robert A. Golden
- Jean C. Havez
- Hal Roach
- Thomas J. Crizer
- Hal Roach
Harold Lloyd hace el papel de Dr. 'Jack' Jackson.
Mildred Davis interpreta a The Sick-Little-Well-Girl en la película.
John T. Prince hace el papel de Charles F. Haskell - Her Father.
Eric Mayne interpreta a Dr. Ludwig von Saulsbourg en la película.
C. Norman Hammond hace el papel de Jamison - the Lawyer.
Jackie Condon hace el papel de Boy's Pal (uncredited).
Mickey Daniels interpreta a Boy Patient (uncredited) en la película.
Richard Daniels interpreta a Man (uncredited) en la película.
William Gillespie interpreta a Card Player (uncredited) en la película.
Wally Howe hace el papel de Asylum Guard (uncredited).
James T. Kelley interpreta a Card-Playing Father (uncredited) en la película.
'Auntie' Mackay interpreta a Undetermined Secondary Role (uncredited) en la película.
Florence Mayon interpreta a Card Player's Daughter (uncredited) en la película.
Oscar Morgan interpreta a Undetermined Secondary Role (uncredited) en la película.
Charles Stevenson interpreta a Asylum Guard (uncredited) en la película.
Anna Townsend interpreta a Jamison's Mother (uncredited) en la película.
Dorothy Vernon hace el papel de Restaurant Hostess (uncredited).
Joy Winthrop hace el papel de Undetermined Secondary Role (uncredited).
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