Also Known As:
- Der verbotene Schlüssel
- La llave maestra
- La porte des secrets
- The Skeleton Key
- A Chave
- A Chave Mestra
- A titkok kulcsa
- Iskelet anahtar
- Kljuc tajni
- Klucz do koszmaru
- Kvela karis gasagebi
- La clé des secrets
- La llave del mal
- Sukeluton Ki
- To antikleidi
- Iain Softley
- Ehren Kruger
- Kate Hudson ... Caroline Ellis
- Gena Rowlands ... Violet Devereaux
- John Hurt ... Ben Devereaux
- Peter Sarsgaard ... Luke Marshall
- Joy Bryant ... Jill
- Maxine Barnett ... Mama Cynthia
- Fahnlohnee R. Harris ... Hallie (as Fahnlohnee Harris)
- Marion Zinser ... Bayou Woman
- Deneen Tyler ... Desk Nurse
- Ann Dalrymple ... C.N.A.
- Trula M. Marcus ... Nurse Trula (as Trula Marcus)
- Tonya Staten ... Nurse Audrey
- Thomas Uskali ... Robertson Thorpe (as Tom Uskali)
- Jen Apgar ... Madeleine Thorpe
- Forrest Landis ... Martin Thorpe
- Jamie Lee Redmon ... Grace Thorpe
- Ronald McCall ... Papa Justify
- Jeryl Prescott ... Mama Cecile (as Jeryl Prescott Sales)
- Isaach De Bankolé ... Creole Gas Station Owner
- Christa Thorne ... Creole Mother
- Lakrishi Kindred ... Frail Customer
- Lawrence 'King' Harvey ... Bar Man
- Mark Krasnoff ... Pickup Driver
- Sabah ... Luke's Secretary
- Susannah Thorarinsson ... Waitress in Bar
- Bill H. McKenzie ... Mr. Talcott
- Joe Chrest ... Paramedic
- David J. Curtis ... Party Guest (as David Curtis)
- Tiffany Helland ... Party Guest
- Brian Ruppert ... Party Guest (as Bryan Ruppert)
- Philip Frazier ... Rebirth Brass Band
- Derek Shezbie ... Rebirth Brass Band
- Glen Andrews ... Rebirth Brass Band
- Stafford Agee ... Rebirth Brass Band
- Keith Frazier ... Rebirth Brass Band
- Derrick Tabb ... Rebirth Brass Band
- Shamarr Allen ... Rebirth Brass Band (as Shamar Allen)
- Byron Bernard ... Rebirth Brass Band
- Herbert Stevens ... Rebirth Brass Band
- George Harper ... Jazz Band
- Howard McCary ... Jazz Band
- Kevin O'Neal ... Jazz Band
- Ryan Porter ... Jazz Band
- Rudy Regalado ... Jazz Band
- Nolan Shaheed ... Jazz Band
- Dustin Fleetwood ... 3rd Infantry Band Member
- Roderick Harrison ... 3rd Infantry Band Member
- Torrey McKinley ... 3rd Infantry Band Member
- Rico E. Anderson ... Orderly in Hospital
- Andreas Beckett ... Ballroom Dancer
- Pauline Boudreaux ... Party Guest
- Kristi Chalaire ... Club Goer
- Natasha Delahunt ... Ballroom Dancer
- James J. Duhon ... Club Goer
- Ianello Garcino ... Mama Cecile's Lyncher
- Justin Groetsch ... Club Goer
- Michael Tyler Henry ... Older Martin
- Korey L. Jarmon ... Club Goer
- David Jensen ... Country Doctor
- Karen Kaia Livers ... Preacher
- Melissa Reneé Martin ... Caviar Eating Guest
- Natalie McNeil ... Cigar Smoking Party Guest
- Piper Moretti ... 1930s Party Guest
- Sarah Pettycrew ... Ballroom Dancer
- Karen Pritchett ... Bar Patron
- Ross Rouillier ... Vigilante
- Joel Schmidt ... Terrebonne Sheriff
- L.J. Stevens ... Older Grace
- Michael Wozniak ... Lynch Group Leader