The cast of NBC's new hit series Heroes is hosting an online charity art auction at HeroesAuction.com to benefit Greg Grunberg's charity the Pediatric Epilepsy Project (PEP) as his young son Jake suffers from this neurological condition.

With bids starting at $20, the auction includes autographed character illustrations by each cast member, as well as a limited edition "Heroes" promotional item, autographed by legendary comic book artist Tim Sale.

The auction launches Monday, November 6, and ends Tuesday, November 28, at Midnight PST (technically Monday night).