(FORTUNE Magazine) – Columbia University freshman and Hyatt heiress Liesel Pritzker, 18, has a busy spring ahead. She's suing her dad, Robert, and other family members for allegedly siphoning more than $1 billion from her trust fund, and her lawyers filed a flurry of new accusations in late February. Among them: Despite the suit, Dad is continuing to raid the trust. (Robert has said he's within his rights as trustee.) Meanwhile, Liesel, an actress who was Harrison Ford's daughter in Air Force One, hits Broadway in March, playing Vincent van Gogh's sister in Vincent in Brixton. But don't look for the famous Pritzker name in the playbill. Her stage name is Liesel Matthews, a nod to her brother, Matthew, 20, who's also suing Dad. --Adam Lashinsky