"We don't want to put it out there, like try and turn him into something before we meet the kid," Padelecki told Us Weekly prior to Thomas Colton's birth. "We want to get a feel for who this kid is before we name him."
Padalecki -- who's also appeared in New York Minute with Mary-Kate and Ashley Olsen and House of Wax with Paris Hilton and Chad Michael Murray -- recently finished taping the first episode of Supernatural's eighth season.
"Episode 1 done! Even though it's really episode 3," he tweeted July 18. "Well, actually it's episode 150!! Thanks y'all."