Rachel Shelley as Claire Rivers

Heida Reed as Rita

Wayne Brady as Henry

Annie Cusselle as Young Claire

Rebecca-Clare Evans as Helen Rivers

Bhasker Patel as Dr. Varma

Claire Fox as Kate

Martin Howard as Postman

Kelly Allen as News Anchor (Voice only)

Tamsin Jeffrey as Claire's Agent (Voice only)

Sam Baxter as News Reporter (Voice only)

Natalie Kennedy as Emergency Recording (Voice only)

Winnie Southgate as Telephone Voice (Voice only)