Fireman Sam: Alien Alert! The Movie (2017)

Steven Kynman

Fireman Sam / Norman Price (voice)

David Carling

Tom Thomas / Station Officer Steele / Trevor Evans / Mike Flood

Su Douglas

Dylis Price / Mandy Flood / Helen Flood

John Hasler

Arnold McKinley / James Jones

Harriet Kershaw

Bella Lasagne / Ellie Philips (voice)

Alex Lowe

Joe Sparkes / Ben Hooper (voice)

Nigel Whitmey

Moose Roberts (voice)

Jo Wyatt

Lizzie Sparkes / Hannah Sparkes (voice)

David Tennant

Buck Douglas (voice)

Tegwen Tucker

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