Then: Before he played aspiring actor Neil, Leonard had already appeared in two feature films, the sci-fi thriller 'The Manhattan Project' and the outlandish comedy 'My Best Friend Is a Vampire.'
Now: The talented young ingen-dude went on to star in such memorable movies as the World War II drama 'Swing Kids,' Kenneth Branagh's 'Much Ado About Nothing' and Richard Linklater's 'Tape,' where he reunited with 'Dead Poets Society' co-star Ethan Hawke. But nowadays, Leonard is best known as Dr. James Wilson, the dedicated but often exasperated best friend of the genius but tortured title character of 'House M.D.' The popular and critically-acclaimed show ran for eight seasons, drawing its final curtain last summer.