Agent Dick Grant, alias Richard Hood

Helen Sherwood

David Sherwood

Agent Gabby Lambert

Gangster Sam "Red" Hammond

Monk Gleason, gang boss

Ella Ferris

Andrew Webster, banker

Lanky Gangster (script name: Steve)

Butch, beefy gangster

Louie, beefier and dull-witted gangster

Area Agent Drew

Becky Ferris

Chief Agent Crawford

Agent Jones

Major Newcomb, publisher

Miss Simpson, gang "nurse"

Cowardly Gangster in Getaway Launch

Kansas City Police Commissioner

Talkative Reporter

Wiseguy Reporter