Brian Cox

Santa (voice)

Bill Nighy

Lighthouse Bill (voice)

Fiona Shaw

Ms. Trapper (voice)

Jodie Whittaker

Mrs. Williams (voice)

India Brown

Bernadette McNutt (voice)

Guz Khan

Dasher (voice)

Lolly Adefope

Mrs. McNutt (voice)

Alex MacQueen

Mr. Forrest (voice)

Katherine Parkinson

Mrs. Forrest (voice)

Sindhu Vee

Mrs. Mulji (voice)

Rosie Cavaliero

Mrs. Beccles (voice)

Paul Kaye

Yirrell (voice)

Andy Nyman

Mr. Beccles (voice)

Rhys Darby

Mr. McNutt (voice)

Dermot O'Leary

Additional Voices (voice)