Tommy McCoy grew up poor and scrappy. As a young man he discovers that he can fight with his powerful right arm. He becomes successful at boxing, however he has an alcoholic father.

Mickey Rooney
as Tommy McCoy / Killer McCoy

Brian Donlevy
as Jim Caighn

Ann Blyth
as Sheila Carrson

James Dunn
as Brian McCoy

Tom Tully
as Cecil Y. Walsh

Sam Levene
as Happy

Walter Sande
as Bill Thorne

Mickey Knox
as Johnny Martin

James Bell
as Father Patrick Ryan

Gloria Holden
as Mrs. Laura McCoy
Frank F
Overall a decent boxing flick with Mickey Rooney playing his regular part: scrappy, down, up, down and then in love. The weakest points are when some very improbable (and unnecessary) plot choices are used that make me cringe (like expecting a very alcoholic braggart of a father to keep a secret). B...