Torri Higginson

as Sandra Sullivan

as Liz Sterling

as Marie Cook

as Charlotte Singer

as Marion

as Self

as Dr. Kaycee Leeds

as Evelyn

as Elizabeth Weir

as Chief Geiger

as Lorraine Healey

as Dr. Katie Arlen

as Ms Sheila Newlands

as Abby Wrigley

as Caroline Chandler

as Sara Gemmel

as Peggy

as Jenny

as Mary

as Allison Doherty

as Samantha 'Sammy' Woods

as Kristen

as Claire

as Claire Malone • 48 eps

as Dr. Michelle Kessler • 1 eps

as Natalie Lawson • 20 eps

as Commander Truffault • 2 eps

as Opening Narrator (voice) • 8 eps

1 eps

as Alex • 1 eps

as Elizabeth Weir • 64 eps

as Jordan Hampton • 2 eps

as Kate • 1 eps

as Rebecca Curtis • 1 eps

as Katharine Strachan • 32 eps

as Angela Carver • 3 eps

as Claudia Hoffman • 1 eps

as Dr. Elizabeth Weir • 3 eps

1 eps

as Alyssa Selwyn • 1 eps

as Liddie (19-38) • 2 eps

1 eps

as Georgia • 1 eps