Actortweeted on Saturday that he and wife Kelley are expecting their second child. The couple, married since 2004, are already parents to their three-year-old son Jackson.
Wolf first howled to fame in the mid-1990s as troubled alcoholic Bailey Salinger on the award-winning, acclaimed FOX family drama Party of Five. Since then, he's been a regular on Everwood and V, and recently had a recurring role on NCIS.
His wife Kelley was a regular on MTV's The Real World: New Orleans.