People Danielle Prepon Danielle Prepon Danielle Prepon from . About Family Sister Danielle Prepon has 1 sibling. American actress Laura Other facts about Danielle Prepon Given name Danielle Family name Prepon. Show people with the surname Prepon Danielle Prepon's Sister Laura Prepon, 44 Comments There are no comments yet. Enter your name here: Enter your email here: Enter your message here: Your message is required. Markdown cheatsheet. Submit