Carrie-Anne Moss and Malcolm McDowell have joined Adelaide Clemens, Sean Bean, Kit Harington, and Radha Mitchell in the upcoming horror sequel Silent Hill: Revelation 3D.  Moss and McDowell will play Claudia and Leonard Wolf, but the press release doesn't offer any details on those characters.  For those just tuning in, here's the synopsis:

For years, Heather Mason (Clemens) and her father (Sean Bean) have been on the run, always one step ahead of dangerous forces that she doesn’t fully understand. Now on the eve of her 18th birthday, plagued by terrifying nightmares and the disappearance of her father, Heather discovers she's not who she thinks she is. The revelation leads her deeper into a demonic world that threatens to trap her in Silent Hill forever.

Hit the jump for the press release along with a new image from the film.

Here's the press release:

CARRIE-ANNE MOSS AND MALCOLM MCDOWELL JOIN CAST OF SILENT HILL: REVELATION 3D

LENSING UNDERWAY IN TORONTO ON MICHAEL J. BASSETT-DIRECTED PIC

TORONTO – April 6, 2011: The newest residents of Michael J. Bassett’s world of Silent Hill: Revelation 3D are Carrie-Anne Moss (The Matrix Trilogy, Memento, Unthinkable, Chocolat) who will play “Claudia Wolf” and Malcolm McDowell (Easy A, Entourage, A Clockwork Orange) as “Leonard Wolf.”   Silent Hill: Revelation 3D is currently lensing in Toronto and produced by Samuel Hadida and Don Carmody.

Moss and McDowell join rising star Adelaide Clemens (X-Men Origins: Wolverine, Vampire, Camilla Dickinson, Wasted on the Young, Mad Max: Fury Road); Kit Harington (HBO’s upcoming series Game of Thrones); and returning Silent Hill residents Radha Mitchell (The Crazies, Surrogates); Sean Bean (Game of Thrones, Percy Jackson & the Olympians: The Lightning Thief, Lord of the Rings), and Deborah Kara Unger (Shake Hands with the Devil, 88 Minutes).

Hadida said: “Carrie has displayed her enormous talent across all genres – from The Matrix Trilogy to Memento – and we are delighted for her to join the world of Silent Hill.  She will certainly bring a new level of excitement to fans of the videogame franchise.”

McDowell will pay tribute to Stanley Kubrick at the 2011 Festival de Cannes this May, by screening seven of the famed director’s films in fully restored condition.

Director Michael J. Bassett said: “Malcolm is quite simply an icon of modern cinema and I've been a fan since I was a teenager when I managed to see A Clockwork Orange.  He has an amazing ability to bring new and unexpected dimensions to his characters and I know he will bring something unique and disturbing to Silent Hill.”

Hadida and Carmody most recently produced Resident Evil: Afterlife 3D starring Milla Jovovich, Ali Larter, and Wentworth Miller.  Past collaborations include Resident Evil: Apocalypse and the earlier Silent Hill.