A native Californian, Mary Alexandra was born in Chico and grew up in Stockton, where she was involved in local theater and dance from a young age. Her uncle, George M. Clark, a documentary filmmaker, introduced her to filmmaking when she was in high school. She decided to actively pursue a career in the arts and auditioned for the prestigious school of Theater, Film and Television at UCLA.She received a Bachelor of Arts in Theater at The University of California at Los Angeles and during her time there, Mary Alexandra spent a year studying French cinema and philosophy abroad in Paris at the Sorbonne Nouvelle (Paris III). After graduating, she relocated to England to do her post-graduate training at the London Academy of Music and Dramatic Art (LAMDA). Five days after graduation she packed her suitcase for New York to pursue work in theater, film, television and modeling.This funny, young actress has stretched her comedic muscles and tested her dramatic skills in; TV (The Sarah Connor Chronicles, The Mentalist, The New Adventures of Old Christine, The Wedding Bells and Happy Hour), Films (Supergator, Loveless in Los Angeles, Four Lane Highway, Reality School and Model Chaser), numerous commercials (Budlight, Volvo, Style Network, TGIFriday's) and worked regularly for a year and a half on The Late Show with David Letterman before relocating to the West Coast. She collaborated with Rockstar Games on 3 video games (Max Payne 2, The Warriors, Grand Theft Auto; San Andreas). She can also be seen as part of the new exhibit at The Ronald Reagan Discovery Center. As well as being a skilled dancer, Mary Alexandra received her stage combat certificate from the British Academy of Dramatic Combat. She is trained in a variety of different weapons and unarmed combat.In order to sustain longevity in the ever-changing entertainment industry, she found another passion in producing. Her first attempt at producing came in London. Mary Alexandra co-produced Twelfth Night, the first production of Natural Perspectives Theatre Company, which was performed in the Old Royal Observatory Garden in Greenwich Park. Natural Perspectives was formed by a group of LAMDA Alumni. She then took on the challenge of her first short, Bad Habits, with the production company she helped found, Habit Forming Films, which won an award at Houston Worldfest International Film Festival. Her follow up film was Wedding For One, directed by Kristina Lloyd, which Mary produced with Jenny D. Martin. Jenny, Kristina and Mary Alexandra have all been friends since attending UCLA Theater program together.Mary Alexandra continues to work as an independent producer, actress and poet, enjoying her time both in front of and behind the camera working to develop new material. She is currently producing 11-44 with Gryphon Entertainment and directed by Kristina Lloyd. Mary continues to work on stage, which is her first love recently performing in Suburban (for TV Takes The Stage) and Bed Scene (for Actoberfest).

Has a sister, Kathryn Stiefvater, who is also an actress.Her paternal grandmother, Mary Elizabeth Tilson Stiefvater was Olivia De Havailland's double/stand-in on "The Adventures of Robin Hood."Founded "Habit Forming Films," a production company, with Kathryn Stiefvater, David Accampo, Jeremy Rogers, Nick Harris and Christa Nahhas.Co-produced "Twelfth Night," the first production of "Natural Perspectives Theatre Company" in London. "Natural Perspectives" was formed by a group of LAMDA Alumni.Her last name is pronounced like "steve-otter".Her uncle, George Clark, is the documentary filmmaker who made "Brickpile to Broadway; The Story of Slip Madigan and The Galloping Gaels."Is of Croatian, German, Italian, Irish, English and Scottish decent.Shares a birthday with Clint Eastwood, Brooke Shields and Colin Farrell.Did the motion capture work for the character Mona Sax in "Max Payne 2 (VG)" and various characters in "The Warriors (VG).".Producer of the film "Bad Habits", a short film with "Habit Forming Films" (2006).Is an avid snow skier.Her family ran the second oldest private owned water well drilling company, Clark Well, Inc. in the U.S. until it closed in 2006. The company was started by her great great grandfather.