Fireman Sam

Steven Kynman

Sam / Elvis / Norman / Derek / Charlie (voice) / Sam / Elvis / Norman / Derek / Charlie / Jerry Lee (voice) / Sam / Elvis / Norman / James / Charlie (voice) / Sam / Elvis / Norman / James / Derek / Charlie (voice)

David Carling

Station Officer Steele / Chief Fire Officer Boyce / Trevor / Tom / Mike (voice) / Station Officer Steele / Trevor / Tom / Mike (voice)

Su Douglas

Dilys / Mandy / Helen (voice) / Dilys / Mandy / Helen / Lily (voice)

Tegwen Tucker

Penny / Sarah / Bronwyn (voice) / Penny / Sarah / Bronwyn / Mrs. Chen (voice)

John Hasler

James (voice) / James / Professor Pickles (voice)

Ifan Huw Dafydd

Gareth (voice)

Nigel Whitmey

Moose (voice)

Jo Wyatt

Hannah / Lizzie (voice)

Alex Lowe

Ben / Joe (voice)

Gareth Lewis

All Characters (voice)

John Sparkes

Male Voices (voice)

Joanna Ruiz

Female Voices (voice)

Sarah Hadland

Female Voices (voice)

Harriet Kershaw

Ellie / Bella (voice)