| Follow All Star Musicals features a cast of famous faces who each perform an iconic number from a hit musical at the legendary Palladium Theatre in London's West End. After each performance, the panel awards the celebrities a score and at the end of the night, these scores are combined with the studio audience vote to crown one celebrity the All Star Musicals champion. |
| Name | Character | Episodes |
|---|---|---|
| John Barrowman | Self - Host | 3 |
| Elaine Paige | Self - Judge | 3 |
| Samantha Barks | Self - Judge | 2 |
| Kristin Chenoweth | Self - Judge | 1 |
| Ben Miller | Self - Performer | 1 |
| Michael Crawford | Self - Mentor | 1 |
| Rebecca Front | Self - Performer | 1 |
| Jessica Hynes | Self - Performer | 1 |
| Tony Robinson | Self - Performer | 1 |
| Sally Phillips | Self - Performer | 1 |
| Catherine Tyldesley | Self - Performer | 1 |
| Daniel Brocklebank | Self - Performer | 1 |
| Tessa Peake-Jones | Self - Performer | 1 |
| Andrew Flintoff | Self - Host | 1 |
| Gyles Brandreth | Self - Performer | 1 |
| Anita Rani | Self - Performer | 1 |
| London Hughes | Self - Performer | 1 |
| Joel Dommett | Self - Performer | 1 |