She studied acting with R. J. Adams at The Actors Workshop.
Sarah started her acting debut with the recurring role of Rachel Meyers in the long-running television series "Saved by the Bell: The New Class" [54 episodes: 1993-1996].
Lancaster guest performed in several television shows like "Unhappily Ever After" [1997], "Zoe, Duncan, Jack & Jane" [2000], "That '70s Show" [2002], "CSI: Crime Scene Investigation" [2003] and many other TV shows.
She also performed recurring roles in a number of television shows like "Undressed" [3 episodes: 1999], "Scrubs" [3 episodes: 2002-2006], "Dr. Vegas" [10 episodes: 2004-2006], "What About Brian" [17 episodes: 2006-2007] and "Chuck" [35 episodes: 2007-2009].
Sarah Lancaster made her big-screen debut with "Lovers Lane" in 1999 followed by other movies such as "Teacher's Pet" [2000], "Cruel Intentions 2" [2000], "Catch Me If You Can" [2002] and "Smother" [2008].
She acted the role of Skylar Sinclair in her first made-for-television movie "sorority" in 1999 followed by "Michael Landon, the Father I Knew" [1999], "Rocket's Red Glare" [2000] and "Living with the Enemy" [2005].
Sarah has undergone eight years of training in jazz and funk dancing.
Her favorite food is Chinese and her favorite drink is simply water.
Lancaster's favorite bands include Radiohead and her favorite movies are "Amistad", "She's So Lovely" and "Good Will Hunting".
Sarah's favorites Actors/Actresses are Robert DeNiro, Gary Oldman, John Malkovich, Johnny Depp and Kate Winslet.