Brian Cox

Santa (voice)

Fiona Shaw

Ms. Trapper (voice)

Jodie Whittaker

Mrs. Williams (voice)

Bill Nighy

Lighthouse Bill (voice)

Lolly Adefope

Mrs. McNutt (voice)

Alex MacQueen

Mr. Forrest (voice)

Katherine Parkinson

Mrs. Forrest (voice)

Sindhu Vee

Mrs. Mulji (voice)

India Brown

Bernadette McNutt (voice)

Zazie Hayhurst

Sam Beccles (voice)

Sienna Sayer

Charlie Beccles (voice)

Rosie Cavaliero

Mrs. Beccles (voice)

Paul Kaye

Yirrell (voice)

Guz Khan

Dasher (voice)

Andy Nyman

Mr. Beccles (voice)

Jack Wisniewski

Danny Williams (voice)

Kuhu Agarwal

Nisha Mulji (voice)

Bronte Smith

Eve McNutt (voice)

Freddie Spry

Teddy Forrest (voice)

Ava Talbot

Scarlett Forrest (voice)

Rhys Darby

Mr. McNutt (voice)

Deborah Findlay

Mrs. Horton (voice)

Alicia Davies

Weather Person (voice)

Isabella Hopkins

Additional Voices (voice)

Simon Otto

Additional Voices (voice)

Jordan North

Additional Voices (voice)

Dermot O'Leary

Additional Voices (voice)

Luke Jameson

Additional Voices (voice)

Mary Moss

Additional Voices (voice)