Lawson was born in Los Angeles, California. She is the daughter of Denise (née Gordy) and actor Richard Lawson. Lawson is also the great-niece of Motown founder Berry Gordy. She attended the Stella Adler Studio of Acting and graduated from Marymount High School, a Catholic school in Los Angeles. She then went on to study film and psychology at University of Southern California. Lawson is African-American and of Italian, Native American, Portuguese, and Creole descent. In 2009, Lawson was cast as Shawna in The Secret Life of the American Teenager. That same year, she was cast in the CW television series The Vampire Diaries, as witch Emily Bennett. In December 2009, she was cast as Maya St. Germain in the ABC Family series Pretty Little Liars, based on the book series by Sara Shepard. She appeared in that show from June 2010 through August 2012. Since 2012, she has had a recurring role as Ms. Morell in the MTV television series Teen Wolf, based on the original film from 1985.
Was originally cast as Cordelia in Buffy the Vampire Slayer (1997), but had to turn down the role because of contractual obligations to Goode Behavior (1996). She later resurfaced in the role of Kendra.
Daughter of actor Richard Lawson and Denise Gordy.
Started acting at age nine.
She played the daughter of her real life father Richard Lawson in Saved by the Bell: The New Class (1993).
As of 2013, she has played a 17-year-old for over 17 years, playing "Megan Jones" on Saved by the Bell: The New Class (1993), years '93 to '94, through to "Maya St. Germain" (a teenager when Lawson left the show in 2012).
Through her mother, Denise Gordy, Bianca Lawson is related to two legends of the American music industry. Lawson's half-brother, Marvin Gaye III, is the son of Denise Gordy and Mowtown star Marvin Gaye, and Denise's father, George Gordy, was a brother of Motown Records founder Berry Gordy.
Step-sister-in-law of Jay Z and Alan Ferguson.
Step-sister of Beyoncé Knowles and Solange Knowles.