Characters played by Jackie Coogan
Henry Peck AKA 'Peck's Bad Boy'
Characters played by Wheeler Oakman
Dr. Jack Martin - the Man in the Case
Characters played by Doris May
Letty Peck - Henry's Sister
Characters played by Raymond Hatton
The Village Grocer
Characters played by James Corrigan
George W. Peck - Henry's Pa
Characters played by Lillian Leighton
Mrs. George W. Peck - Henry's Ma
Characters played by Charles Hatton
Buddy - Henry's Pal
Characters played by K.T. Stevens
Henry's Sweetheart
Characters played by Dean Riesner
(as Dinky Dean)
Characters played by Queenie the Dog
Tar Baby - Henry's Dog