Ratburger

David Walliams

Burt

Talia Barnett

Zoe

Tillie Amartey

Tina Trotts

Harish Patel

Raj

Sheridan Smith

Sheila

Mark Benton

Gary

Nigel Planer

Headmaster

Sophie Thompson

Miss Maxwell

Sarah Hadland

DC Grey

Jocelyn Jee Esien

WPC Budd

Ben Bailey Smith

Charlie Jacobs

Michael Gambon

Narrator (voice)