Sebastian Croft
Archibald Arnold
Charithra Chandran
Amelia Brown
Tanner Buchanan
Billy Walsh
Kunal Nayyar
Rupert Brown
Nick Frost
William
Guz Khan
Mr. Atkins
Lucy Punch
Lilly Arnold
Tim Downie
George Arnold
Daisy Jelley
Amber McKenna
Charles Camrose
Tony
Maisie Peters
Maisie Peters
Paxina Tuvuka
Talissa
Dhanushka Anson
Jules Brown
Nael Ameen
Yousif
Madeline Holliday
Penny
John Richmond
Quigley
Russell Streiner
Johnny (archive footage)
Judith O'Dea
Barbra (archive footage)
Bella Induruwana
5 Years Old Amelia
Henry Reinhart
5 Years Old Archie
Shaneli Gedara
9 Years Old Amelia
Casper Knopf
9 Years Old Archie
Aliyah Soyinka
Student #1
Curtis Antonio Powell
Student #2(as Curtis Powell)
Luyanda Unati Lewis-Nyawo
Maggie
Jocelyn Jee Esien
Ms. Frances
Jett Dyason
Trent
Ben Greenhough
Soho Waiter
Joyce Branagh
Joyce Branagh
Keira Hirst
Eyebrow Girl
Esther Agbakwuru
Nurse(uncredited)
William Cherry
Student(uncredited)
Nathan Hall
George (Student with Fedora)(uncredited)
Samuel Hayes
Cinema Attendee(uncredited)
George Imerlishvili
Student(uncredited)
Killian Kilduff
Hot Dog Seller(uncredited)
JJ Martin
Student(uncredited)
Freya Pearson
Student(uncredited)
Edith Slow-Noble
Teenager(uncredited)
Jack Smith
Swim Team(uncredited)