Allison Janney
Dr. Golan

Ella Purnell
Emma

Terence Stamp
Abraham Portman

Milo Parker
Hugh

Cameron King
Millard Nullings (voice)

Finlay MacMillan
Enoch
Callum Wilson
Young Abraham Portman

Kim Dickens
Jake's Mom

Lauren McCrostie
Olive

Pixie Davies
Bronwyn