David Tennant

Character: Heart

Fern Deacon

Character: Liddy Holligan

Siena Kelly

Character: Kim St Clair

Jo Martin

Character: Joy Samuelson

Pooky Quesnel

Character: Sharon Hill

Zelda Tinska

Character: Nurse Karolina

Nicola Duffett

Character: Edie Power

Haruka Kuroda

Character: Dr. Valerie Shinzou

Felicity Montagu

Character: Hen Holligan