Billy Hill and Jack 'Spot' Comer were among the most notorious criminals in London up until the 1950s. Dramatising the violent reign of two of London's most notorious gangsters, Billy Hill (Leo Gregory) and Jack 'Spot' Comer (Terry Stone), ONCE UPON A TIME IN LONDON charts the legendary rise and fall of a nationwide criminal empire that lasted until the mid-fifties and which paved the way for the notorious Kray Twins and The Richardsons. This is the story of their rise and fall.
You can now watch Once Upon a Time in London online on the following streaming providers in the United States.
| Directing | Simon Rumley | Director |
| Camera | Milton Kam | Director of Photography |
| Editing | Tom Parsons | Editor |
| Sound | Richard Chester | Music |
| Writing | Simon Rumley | Writer |
| Writing | Terry Stone | Writer |
| Writing | Will Gilbey | Writer |
| Production | Terry Stone | Casting |
| Art | Joshua Noon | Art Direction |
| Costume & Make-Up | Michelle May | Costume Design |
| Art | Charlotte Coulter | Set Decoration |
| Production | Richard Turner | Producer |
| Production | Terry Stone | Producer |
| Production | Michelle Smith | Casting |
| Art | Anna Mould | Production Design |
| Costume & Make-Up | Annelies Henny | Costume Supervisor |
| Costume & Make-Up | Nicola Wilson | Key Set Costumer |
| Sound | Rupert Hollier | Music Supervisor |
| Camera | Leo Winslow | First Assistant "D" Camera |
| Costume & Make-Up | Emma J. Slater | Hair Designer |
| Costume & Make-Up | Diandra Ferreira | Makeup Artist |
| Lighting | Peter Riches | Electrician |
| Lighting | John Letsinger | Electrician |
| Camera | Julie Edwards | Still Photographer |
| Camera | Stuart Nicholas White | Second Unit Director of Photography |
| Costume & Make-Up | Naomi Tolan | Key Makeup Artist |
| Costume & Make-Up | Emma J. Slater | Makeup Designer |
| Production | Ray Empson | Executive Producer |
| Production | Tiernan Hanby | Co-Producer |
| Production | Andrew Harvey | Line Producer |
| Production | Chris Howard | Executive Producer |
| Production | Jyotsna Shah | Executive Producer |
| Production | Piyush Shah | Executive Producer |
| Production | Jezz Vernon | Executive Producer |
| Costume & Make-Up | Hayley Belle | Makeup Artist |
| Production | Nancy Jiang | Production Secretary |
| Production | Joe Karimi-Nik | Production Manager |
| Directing | Christiaan Faberij de Jonge | First Assistant Director |
| Directing | Erin Large | Second Assistant Director |
| Directing | Michael Searle | Third Assistant Director |
| Directing | Albertine Selvik | Assistant Director |
| Art | Ashleigh Latter | Set Dresser |
| Sound | Raoul Brand | Dialogue Editor |
| Sound | Duncan Campbell | Foley Recordist |
| Sound | Craig Conybeare | Boom Operator |
| Sound | Max Devere | Sound Mixer |
| Sound | Stephen Goldsmith | Foley Supervisor |
| Sound | Karolina Jedrzejczyk | Foley Artist |
| Sound | Adrian Medhurst | Foley Artist |
| Sound | Tom Pallant | Boom Operator |
| Sound | John Simpson | Foley Artist |
| Sound | Lisa Simpson | Foley Recordist |
| Sound | Anna Sulley | Foley Recordist |
| Sound | Vincent Watts | Sound Designer |
| Visual Effects | Scott McIntyre | Special Effects Supervisor |
| Visual Effects | Daniel Waterman | Visual Effects Supervisor |
| Crew | Jason Beeston | Stunts |
| Crew | Simone Belli | Stunts |
| Crew | Sean Bingham | Stunts |
| Crew | Dominic Kinnaird | Stunt Double |
| Crew | Stewert Lyddall | Stunts |
| Crew | Nathaniel Marten | Stunts |
| Crew | Mathew McKay | Stunts |
| Crew | Tiago Silva | Stunts |
| Crew | Dan Styles | Stunt Coordinator |
| Crew | Ronin Traynor | Stunt Coordinator |
| Crew | James Unsworth | Stunts |
| Lighting | Lou Bogue | Gaffer |
| Camera | Ashley Cooke | Second Assistant "A" Camera |
| Camera | Katie Davey | Second Assistant Camera |
| Camera | Kate Louise Eccarius | Focus Puller |
| Camera | Oliver Hallam | Second Assistant "B" Camera |
| Camera | Ed Stone | Camera Operator |
| Production | Matat Levin | Location Manager |
| Production | Florian Cassel-Delavois | Production Coordinator |
| Crew | Ada Wesolowska | Set Runner |
