TV Series (Regular Role)
2011 The Killing
Mitch Larsen, Season 1, 13 episodes, April 2011
IMDb: http://www.imdb.com/title/tt1637727/
2009 Durham County
Dr. Penelope Verrity, Season 2, 6 episodes, July 2009
IMDb: http://www.imdb.com/title/tt0885761/
2008/09 True Blood
Maryann Forrester, Season 1: ep. 10-12
Season 2, June 2009
IMDb: http://www.imdb.com/title/tt0844441/
2008/09 In Treatment
Kate, Season 1/2008: 13 episodes
Season 2/2009: ep.10 & 25
IMDb: http://www.imdb.com/title/tt0835434/
2005/06 Prison Break
Samantha Brinker, Season 1: 7 episodes
IMDb: http://www.imdb.com/title/tt0455275/
2005 Global Frequency
Miranda Zero, unaired Pilot
IMDb: http://www.imdb.com/title/tt0472095/
2002-2003: '24'
Lynne Kresge, Season 2: 18 episodes
IMDb: http://www.imdb.com/title/tt0285331/
2000 Wonderland
Dr. Lyla Garrity, Season 1: 8 episodes
IMDb: http://www.imdb.com/title/tt0209557/
2000 The District
Helen York, Season 1: 7 episodes
IMDb: http://www.imdb.com/title/tt0247087/
1996-1998 Homicide: Life On The Street
Dr. Julianna Cox, Season 4-6: 32 episodes
IMDb: http://www.imdb.com/title/tt0247087/
1991/92: Star Trek TNG
Ensign Ro Laren, Season 5: 9 episodes
IMDb: http://www.imdb.com/title/tt0092455/
1987/89 The Guiding Light
Sonni Wells, episodes: ??
IMDb: http://www.imdb.com/title/tt0044265/
TV Series (Guest Role)
2008 Lost
Karen Decker, 1 episode
IMDB: http://www.imdb.com/title/tt0994351/
2007/08 Waking The Dead
Sarah, 3 episodes
IMDb: http://www.imdb.com/title/tt0259733/
2006 Boston Legal
Juliette Monroe, Season 3: episode 10
IMDb: http://www.imdb.com/title/tt0836877/
(oops :: pic)
2005 Battlestar Galactica
Admiral Helena Cain, Season 2: episodes Pegasus, Resurrection Ship 1 & 2
IMDb: http://www.imdb.com/title/tt0407362/
2005 The Inside
Zoya Petikof, Season 1 episode 6: Thief Of Hearts
IMDb: http://www.imdb.com/title/tt0611373/
2005 Alias
Maggie Sinclair, Season 4: episode 16
IMDb: http://www.imdb.com/title/tt0508589/
2002 Fastlane
Lena, Season 1, episode 9: Get Your Mack On
IMDb: http://www.imdb.com/title/tt0578203/
1998 Brimstone
Julia Trent, Season 1, episode 6
IMDb: http://www.imdb.com/title/tt0532299/
1996 The Outer Limits
Jamie Pratt, Season 2, episode 1: A Stitch in Time
IMDb: http://www.imdb.com/title/tt0667856/
1994 Seinfeld
Julie, Season 6, episode 2
IMDb: http://www.imdb.com/title/tt0697656/
1991 Father Dowling Mysteries
Gym Instructor, Season 3, episode 11
IMDb: http://www.imdb.com/title/tt0578380/
Movies
Highland Park
2010 (Sylvia)
IMDB: http://www.imdb.com/title/tt1506998/
Dandelion
2004 (Mrs. Voss)
IMDB: http://www.imdb.com/title/tt0338133/
American Girl
2002 (Madge Grubb)
aka: Confessions of an American Girl
IMDb: http://www.imdb.com/title/tt0329297/
Perfume
aka: Dress To Kill
2001 (Francene)
IMDb: http://www.imdb.com/title/tt0245356/
Bullfighter
2000 (Mary)
IMDb: http://www.imdb.com/title/tt0176579/
Escape from L.A.
1996 (Brazen)
IMDb: http://www.imdb.com/title/tt0116225/
(oops :: pic)
Black Day Blue Night
1995 (Rinda Woolley)
IMDb: http://www.imdb.com/title/tt0112515/
Just Looking
1995 (Mary)
IMDb: http://www.imdb.com/title/tt0286741/
Swimming with Sharks
1994 (Dawn Lockard)
IMDb: http://www.imdb.com/title/tt0114594/
The Road Killers
1994 (Helen) aka: Roadflower
IMDb: http://www.imdb.com/title/tt0110999/
(oops :: pic)
Kalifornia
1993 (Carrie Laughlin)
IMDb: http://www.imdb.com/title/tt0107302/
Love Bites
aka Love Bites: The Reluctant Vampire
1993 (Nerissa)
IMDb: http://www.imdb.com/title/tt0107448/
Made For TV Films
Battlestar Galactica - Razor
2007 (Admiral Helena Cain)
IMDb: http://www.imdb.com/title/tt0991178/
Unthinkable
2007 (Jamie McDowell)
IMDb: http://www.imdb.com/title/tt0879223/
Messiah - The Promise
2004 (Susan Metcalfe)
IMDb: http://www.imdb.com/title/tt0422744/
Messiah - Vengeance Is Mine
2002 (Susan Metcalfe)
IMDb: http://www.imdb.com/title/tt0323236/
Messiah - First Killings
2001 (Susan Metcalfe)
IMDb: http://www.imdb.com/title/tt0323236/
Johnson County War
2002 (Rory Hammett)
IMDb: http://www.imdb.com/title/tt0280264/
Homicide - The Movie
2000 (Dr. Julianna Cox)
IMDb: http://www.imdb.com/title/tt0226771/
The Prosecutors
1996 (Rachel Simone)
IMDb: http://www.imdb.com/title/tt0117401/
Voice Acting
2010 DC Universe Online
Circe, Videogame
IMDb: http://www.imdb.com/title/tt1327585/
2009 The Chronicles of Riddick
Assault on Dark Athena, Videogame, Captain Revas
IMDb: http://www.imdb.com/title/tt1218336/
2006-2007 Half-Life 2
Episode 1&2, Videogame, Dr. Judith Mossman
IMDb: http://www.imdb.com/title/tt0853117/
2004 Al Roach - Private Insectigator
Animation, 7min Short, Dede Dragonfly
IMDb: http://www.imdb.com/title/tt0428210/
Theatre - Stage Appearances
A unreliable source mentions two stage appearances:
Follies, Golden Nugget Casino, Atlantic City, NJ, 1982
Call It Clover, Los Angeles, 1994
Hereby I'm increasing the percentage (according to MF it's 75%) of wrong information about her, I'm afraid.
There is a photo floating around the internet. Looks like her, not sure though. Unless Michelle herself officially confirms it I wouldn't believe anything ;-)
Short Films
Diplomacy
2009 U.S. Secretary of State
IMDb: http://www.imdb.com/title/tt1403154/
Dry Martini 1998
IMDb: http://www.imdb.com/title/tt0187822/
The Chosen One
1995 The Mother
IMDB: http://www.imdb.com/title/tt1318851/
(22 July 2010)