Tom Sawyer, Detective

Billy Cook

Tom Sawyer

Donald O'Connor

Huckleberry Finn

Porter Hall

Uncle Silas Phelps

Phil Warren

Jeff Rutledge

Janet Waldo

Ruth Phelps

Elisabeth Risdon

Aunt Sally Phelps

William Haade

Jupiter Dunlap / Jake Dunlap

Edward Pawley

Brace Dunlap

Clem Bevans

Sheriff "Turkeyneck" Slocum

Raymond Hatton

Judge Tyler

Howard M. Mitchell

Elmer Hawkins, Prosecutor

Stanley Price

Clayton