Big Bang Theory star Simon Helberg and his wife Jocelyn Towne recently welcomed their second child, baby boy Wilder Helberg, his rep confirms exclusively to Us Weekly Credit: Michael Loccisano/Getty Images

Big bang baby boy! Simon Helberg and his wife, Jocelyn Towne, have welcomed their second child, his rep confirms to Us Weekly. The Big Bang Theory actor's newborn, Wilder Towne Helberg, arrived on April 23.

The pair also confirmed the news during a Reddit Q&A on June 12. We "made 2 babies and 2 films in the last 2 years," they wrote, as readers congratulated them.

Helberg, 33, first revealed the couple were expecting a second bundle of joy when his actress-writer wife, 37, stepped out with a noticeable baby bump at the Screen Actors Guild Awards in L.A. in January.

"Yes, my wife is [pregnant,] I can't take all the credit," the CBS star joked to Entertainment Tonight on the red carpet.

Helberg and Towne tied the knot in 2012. Their son Wilder now joins big sister Adeline, 2.