Andrea Lee Norwood

Grace

Molly Dunsworth

Alice

Jim Fowler

Eric

Glen Matthews

Joe

Shelley Thompson

Mary

Daniel Lillford

Lewis

Sophie Elliott

Young Grace

Glen Lefchak

Grace's Father / Bunker 8 Radio Voice

Geneviève Steele

Grace's Mother

Mark Critch

News Radio Announcer (voice)

Liam MacDonald

Soldier

Simon Philippe Allard

Paulson Family Member

Tessa Davis

Paulson Family Member

Cheryl Sampson

Paulson Family Member

Iain K. MacLeod

Officer (as Iain MacLeod)

Adam Smith

Engineer

Jonathan Baha'i

Engineer