David Krumholtz

David Krumholtz is an American actor who plays Professor Charlie Eppes on Numb3rs. He is of Jewish descent, Polish and Hungarian, and worked with Peter MacNicol over a decade before the show, on Addams Family Values (1993). For SF fans he is Mr. Universe in Joss Whedon's Serenity (2005), the film sequel to Firefly (2002-3). David was a key part of 1999's Ten Things I Hate About You.

In 2015 he played a younger incarnation of his 'dad' Judd Hirsch's character Abe on the short-lived Forever.