Brian Cox

Santa (voice)

Bill Nighy

Lighthouse Bill (voice)

Fiona Shaw

Ms. Trapper (voice)

Jack Wisniewski

Danny Williams (voice)

Jodie Whittaker

Mrs. Williams (voice)

India Brown

Bernadette McNutt (voice)

Guz Khan

Dasher (voice)

Lolly Adefope

Mrs. McNutt (voice)

Zazie Hayhurst

Sam Beccles (voice)

Sienna Sayer

Charlie Beccles (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)

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)