De getalenteerde achtjarige Tina Denemarken doet er alles aan om de hoofdrol te spelen in haar schoolmusical. Iets! Terwijl Tina ontdekt waar haar talent vandaan komt, laat ze ons zien wat er nodig is om te slagen...
Nee, helaas is Ruthless! The Musical nog niet beschikbaar op Netflix in Nederland.
| Writing | Marvin Laird | Musical |
| Writing | Joel Paley | Musical |
| Sound | Chris Egan | Orchestrator |
| Sound | Simon Beck | Music Director |
| Sound | Gareth Valentine | Music Supervisor |
| Directing | Richard Fitch | Stage Director |
| Production | Jo Hawes | Casting Director |
| Production | Simon Sturgess | Production Manager |
| Directing | Tracey Alker | Script Supervisor |
| Camera | John Simmons | Camera Supervisor |
| Camera | Barrie Dodd | Camera Operator |
| Camera | Paul Jarvis | Camera Operator |
| Camera | Ben Frewin | Camera Operator |
| Editing | Egli Keli | Editor |
| Editing | Paul Ingvarsson | Online Editor |
| Editing | Paul Ingvarsson | Colorist |
| Production | Gail Roberts | Post Production Coordinator |
| Sound | Tim Clark | Supervising Sound Editor |
| Sound | Adam Scrivener | Sound Re-Recording Mixer |
| Sound | John Skehill | Sound Mix Technician |
| Directing | Richard Fitch | Director |
| Sound | Marvin Laird | Music |
| Production | Austin Shaw | Producer |
| Production | Stewart F. Lane | Executive Producer |
| Production | Bonnie Comley | Executive Producer |
| Production | David Babani | Executive Producer |
| Production | Evan Sacks | Executive Producer |
| Art | Morgan Large | Set Designer |
| Costume & Make-Up | Morgan Large | Costume Designer |
| Lighting | Tim Lutkin | Lighting Design |
| Crew | Rebecca Howell | Choreographer |
| Costume & Make-Up | Richard Mawbey | Hair Designer |
| Costume & Make-Up | Richard Mawbey | Makeup Designer |
| Sound | Gregory Clarke | Sound Designer |
