Jennifer was born 22. August 1977. in Los Angeles. She grew up in Simi Valley, California, along with her twin sister Jessica and younger sister Rebecca. Since she was raised in an artistic environment (her mother and grandfather are actors, and her father is a musician), Jenna started appearing in musicals and plays. After she was noticed by a menager Jenna started working on commercials, television spots and few TV movies. Her most famous TV role was the one of Libby Chesler in show "Sabrina, the teenage witch". In last few years Jenna is doing only plays and musicals.
As of 2006 Jenna resides in North Hollywood.