 Lew AyresDr. Patrick J. Cory | Dr. Patrick J. Cory |
 Nancy ReaganJanice Cory | Janice Cory |
 Gene EvansDr. Frank Schratt | Dr. Frank Schratt |
 Steve BrodieHerbie Yocum | Herbie Yocum |
 Tom PowersDonovan's Washington Advisor | Donovan's Washington Advisor |
 Lisa HowardChloe Donovan | Chloe Donovan |
 James AndersonChief Tuttle | Chief Tuttle |
 Victor SutherlandNathaniel Fuller | Nathaniel Fuller |
 Michael ColganTom Donovan | Tom Donovan |
 Peter AdamsMr. Webster | Mr. Webster |
| HHarlan WardeTreasury Agent Brooke | Treasury Agent Brooke |
 Shimen RuskinTailor | Tailor |
 John HamiltonMr. McNish (uncredited) | Mr. McNish (uncredited) |
 Don BrodieDetective Who Follows Dr. Cory from Hotel (uncredited) | Detective Who Follows Dr. Cory from Hotel (uncredited) |
| SStapleton KentW. J. Higgins (uncredited) | W. J. Higgins (uncredited) |
 Frank McLureMan leaving Fuller's Office (uncredited) | Man leaving Fuller's Office (uncredited) |
| WWilliam CottrellDr. Crane (uncredited) | Dr. Crane (uncredited) |
 Max WagnerStation Agent (uncredited) | Station Agent (uncredited) |
| SSam HarrisMan leaving Fuller's Office (uncredited) | Man leaving Fuller's Office (uncredited) |
 Paul HoffmannNot listed | Not listed |
| MMark LowellNot listed | Not listed |
| WWalter MerrillNot listed | Not listed |
 Charles SullivanNot listed | Not listed |
| KKatherine YorkeNot listed | Not listed |
