 Herbert LomThe Phantom (Prof. L. Petrie) | The Phantom (Prof. L. Petrie) |
 Heather SearsChristine Charles | Christine Charles |
 Edward de SouzaHarry Hunter | Harry Hunter |
 Thorley WaltersLattimer | Lattimer |
 Michael GoughLord Ambrose d'Arcy | Lord Ambrose d'Arcy |
 Harold GoodwinBill | Bill |
 Martin MillerRossi | Rossi |
| LLiane AukinMaria | Maria |
| SSonya CordeauYvonne | Yvonne |
 Marne MaitlandXavier | Xavier |
 Miriam KarlinCharwoman | Charwoman |
 Patrick TroughtonThe Rat Catcher | The Rat Catcher |
 Renée HoustonMrs. Tucker | Mrs. Tucker |
 Michael Ripper1st Cabby | 1st Cabby |
 Miles Malleson2nd Cabby | 2nd Cabby |
 Ian WilsonThe Dwarf | The Dwarf |
 John HarveySgt. Vickers | Sgt. Vickers |
| KKeith PyottWeaver | Weaver |
| EErnest BlythAudience Member (uncredited) | Audience Member (uncredited) |
 Ray CooperShocked Tympanist (uncredited) | Shocked Tympanist (uncredited) |
| LLeila FordeTeresa (uncredited) | Teresa (uncredited) |
 Lucy GriffithsCleaner in Theatre (uncredited) | Cleaner in Theatre (uncredited) |
| PPatrick HalpinSait Joan Cast (uncredited) | Sait Joan Cast (uncredited) |
| GGerry JudgeWaiter Preparing Flambé Dish (uncredited) | Waiter Preparing Flambé Dish (uncredited) |
| GGeoff l’CiseFrenchman (uncredited) | Frenchman (uncredited) |
| WWaveney LeeChorus Girl (uncredited) | Chorus Girl (uncredited) |
| JJohn MaddisonPolice Insp. Dawson (uncredited) | Police Insp. Dawson (uncredited) |
 Laurie MainForbes (uncredited) | Forbes (uncredited) |
 Jane MerrowChorus Girl (uncredited) | Chorus Girl (uncredited) |
| CCecil PaulAudience Member (uncredited) | Audience Member (uncredited) |
