Olivia Jane d'Abo (born 22 January 1969) is an English actress, voice actress, and singer-songwriter. She is best known for her roles as Princess Jehnna in Conan the Destroyer (1984), Karen Arnold on The Wonder Years, Mara Simons in Beyond the Stars (1989), Angela in Point of No Return (1993), Betty Jo in Wayne's World 2 (1993), Molly Richardson in Greedy (1994), Marie Blake on the NBC sitcom The Single Guy, Anna Montgomery in The Big Green (1995), Tracey Meltempi in It Had to Be You (2000), and Nicole Wallace on Law & Order: Criminal Intent.