Mickey Rooney

Huckleberry Finn

Rex Ingram

Jim

Walter Connolly

The 'King'

William Frawley

The 'Duke'

Lynne Carver

Mary Jane

Jo Ann Sayers

Susan

Minor Watson

Capt. Brandy

Elisabeth Risdon

Widow Douglass

Victor Kilian

'Pap' Finn

Clara Blandick

Miss Watson

Erville Alderson

Sheriff at Jail (uncredited)

Arthur Aylesworth

River Queen Pilot (uncredited)

Irving Bacon

Tad (uncredited)

Wade Boteler

First Riverboat Captain (uncredited)

Ed Brady

Man at the Show (uncredited)

Harlan Briggs

Mr. Rucker (uncredited)

Nora Cecil

Mrs. Shackleford (uncredited)

Harry Cording

Man Stealing Watermelon (uncredited)

Frank Darien

Old Jailer (uncredited)

Sarah Edwards

Annie Rucker (uncredited)

Jesse Graves

Wilkes' Black Butler (uncredited)

George Guhl

River Queen Engineer (uncredited)

Roger Imhof

Judge Logan at Jim's Trial (uncredited)

Robert Emmett Keane

Mr. Barklett the Lawyer (uncredited)

Lew Kelly

First Riverboat Pilot (uncredited)

Leni Lynn

School Girl (uncredited)

Sarah Padden

Woman Wanting Needle Threaded (uncredited)

Mickey Rentschler

Harry (uncredited)

E. Alyn Warren

Mr. Shackleford (uncredited)

Delmar Watson

Joe (uncredited)