Trent Olsen was born on 6th May 1984 in Sherman Oaks, California, to David Olsen and Jarnette Jones. He's the older brother of twin actresses Mary-Kate Olsen, Ashley Olsen and also of Elizabeth Olsen.He has played himself in a few of her sisters video series, like You're Invited to Mary-Kate and Ashley's Sleepover Party. By: JonBené–