Peter Capaldi

as The Doctor

Jenna Coleman

as Clara Oswald

Michelle Gomez

as Missy

Samuel Anderson

as Danny Pink

Chris Addison

as Seb

Jemma Redgrave

as Kate Lethbridge-Stewart

Ingrid Oliver

as Osgood

Jeremiah Krage

as Cyberman

Nicholas Briggs

as Cyberman (voice)

Joan Blackham

as Woman

Sheila Reid

as Gran

Andrew Leung

as Dr Chang

Bradley Ford

as Fleming

Antonio Bourouphael

as Boy

Nigel Betts

as Mr. Armitage

Sanjeev Bhaskar

as Colonel Ahmed

Shane Keogh-Grenade

as Teenage Boy

Katie Bignell

as Teenage Girl

James Pearse

as Graham

Nick Frost

as Santa Claus