Thomas Francis Wilson, Jr. (born April 15, 1959) is an American character actor, comedian, writer, musician, painter and voice-over artist. He is also a born again Christian. He studied international politics at Arizona State University. He is best known for playing Biff Tannen (and his grandson and great-grandfather) in the Back to the Future trilogy.

Tom Wilson is a creative artist whose professional career has explored almost every imaginable artistic discipline, blending them into a unique and very individual declaration of a life in the arts. A man of fervent but private faith his whole life, the last few years have been interesting, with hundreds of invitations to speak at conferences and retreats, as well as the opportunity to record the music that he began playing in church in the 1970s. Tom has enjoyed a successful career as an actor, writer and comedian for over 20 years. He has more than 50 films, television shows and comedy specials to his credit, and has appeared on talk shows with everyone from Johnny Carson (I) to Jay Leno to David Letterman to Regis Philbin and Kathie Lee Gifford. As a voice-over actor, he has worked in dozens of animated series, including many episodes of Nickelodeon's "SpongeBob SquarePants" (1999). As a comedian he has been a regular performer at the world-famous Improv and Comedy Store since the day he arrived in Hollywood. His self-written one-man show, "Cowboy Tommy," boasted a series of sold-out engagements. He continues to act in movies and television, and he performs comedy and music at theaters across America. As a writer and producer, he's written for several prestigious literary magazines, as well as for Universal Studios, Disney, Fox and Film Roman studios, and produced a groundbreaking series of debates for Canadian television called "The Seven Deadly Sins", which examined cultural values and the role of the arts within them. As an avocation, he is a photographer and painter, with a photograph in the permanent collection of the California Museum of Photography and paintings on the walls of the guest bedrooms of many close personal friends (or, as artists like to say, "in many private collections.") Actor, comedian, writer, musician, and artist - Tom Wilson has transcended the limitations of pop-cultural celebrity to become an artist of honesty, gravity and grace.