H2O

Paul Gross

— Thomas David McLaughlin

Leslie Hope

— Sgt. Leah Collins

Guy Nadon

— Marc Lavigne

Martha Henry

— Julia McLaughlin

Callum Keith Rennie

— Don Pritchard / Lt. Daniel Holt

Michael Murphy

— U.S. Ambassador Conrad

Tommie-Amber Pirie

— Sally

Tantoo Cardinal

— Grand Chief Katie Blackfire

Karen Robinson

— Willy

Dean McDermott

— Clark

Barry Flatman

— Cam Ritchie

Louise Portal

— Marie Lavigne

Philip Akin

— U.S. President Monroe

Peter MacNeill

— Police Chief

Jeff Pustil

— Deever

Diego Matamoros

— Doug McKay

Jeff Seymour

— Nate Morgan

Nancy Palk

— Deirdre Milnes

Allan Hawco

— Christy Berger

Jeff Clarke

— Jim, McLaughlin's aide

Kedar Brown

— McLaughlin's aide

David Boutin

— Det. Michel Duguay

Yves Jacques

— Québec Premier Marcel Coté

Gordon Pinsent

— Michael Cameron

Kenneth Welsh

— Randall Spear

Pierre Brault

— Chief Inspector Simonds