Marcia Mae JonesBetty - Fender's Secretary Douglas FowleyFrederick P. 'Fred' Fender William ForrestDeputy Fire Chief / Narrator Steve PendletonMurph, the undercover man (as Gaylord Pendleton) Byron FoulgerThomas Peyson Emmett VoganAl, Night Watchman Richard DavidJunior Peyson John ForsytheRace Track Aannouncer (voice, uncredited) Maurice TombragelScreenplay Martin ObzinaArt Direction Joseph KishSet Decoration Carl BergerDirector Of Photography Melville ShyerAssistant Director Raoul KraushaarOriginal Music Composer Frank W. MoranSound Mixer William Randall Sr.Sound Mixer 
