Cast of Sanctum

Richard Roxburgh portrays Frank, the skilled but intense dive master leading the expedition in 'Sanctum'.

Ioan Gruffudd takes on the role of Carl, the wealthy financier behind the caving expedition.

Rhys Wakefield plays Josh, Frank's reluctant son who joins the perilous underwater journey.

Alice Parkinson appears as Victoria, Carl's girlfriend who faces the caves' challenges.

Dan Wyllie is featured as Crazy George, a dive crew member with an eccentric personality.

Christopher James Baker plays J.D., a part of the diving team exploring the cave system.

Nicole Downs steps into the role of Liz, a member of the expedition team in 'Sanctum'.

Allison Cratchley portrays Judes, who is also part of the dive team in the movie.

Cramer Cain plays Luko, one of the divers in the dangerous expedition.

Andrew Hansen appears as Dex, who contributes his expertise to the team's dynamic.

John Garvin acts in the role of Jim Sergeant, involved in the cave expedition.

Sean Dennehy flies in as the Chopper Pilot, facilitating the team's transportation.