The Doctor

Ncuti Gatwa

Acting

Ruby Sunday

Millie Gibson

Acting

Kate Lethbridge-Stewart

Jemma Redgrave

Acting

Rose Noble

Yasmin Finney

Acting

Colonel Christofer Ibrahim

Alexander Devrient

Acting

Morris Gibbons

Lenny Rush

Acting

Harriet Arbinger

Genesis Lynea

Acting

The Vlinx

Aidan Cook

Acting

The Vlinx (voice)

Nicholas Briggs

Acting

Susan Triad

Susan Twist

Acting

Bailey Sinclair

Fela Lufadeju

Acting

Melanie Bush

Bonnie Langford

Acting

Carla Sunday

Michelle Greenidge

Acting

Mrs Flood

Anita Dobson

Acting

Cherry Sunday

Angela Wynter

Acting

Colonel Winston Chidozie

Tachia Newall

Acting

Sutekh (voice)

Gabriel Woolf

Acting

Corporal Alice Sullivan

Jasmine Bayes

Acting

Kind Woman

Sian Clifford

Acting

Amol Rajan (archive footage)

Amol Rajan

Acting

Roger ap Gwilliam (archive footage)

Aneurin Barnard

Acting

Louise Miller

Faye McKeever

Acting

The Doctor (archive footage) (uncredited)

Tom Baker

Acting

Sarah Jane Smith (archive footage) (uncredited)

Elisabeth Sladen

Acting