Eddie Nolan (played by James Dunn) is a protagonist in Bad Boy.
Sally Larkin (played by Dorothy Wilson) appears in Bad Boy.
Mrs. Larkin (played by Beulah Bondi) appears in Bad Boy.
Mrs. Harris (played by Louise Fazenda) appears in Bad Boy.
Sid (played by Victor Kilian) appears in Bad Boy.
Fred Larkin (played by John Wray) appears in Bad Boy.
Angry Saxophone Player - Tenant (played by John Carradine) appears in Bad Boy.
Husband (played by Samuel S. Hinds) appears in Bad Boy.