Simon Helberg

The Big Bang Theory star Simon Helberg has welcomed his second child, Us Weekly reports. The actor's wife Jocelyn Towne gave birth to a baby boy, Wilder Towne Helberg, on April 23.

Helberg and Towne revealed they were expecting baby No. 2 in January at the Screen Actors Guild Awards, where Towne revealed her big baby bump on the red carpet.

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The couple married in 2007 and are already parents to Adeline, 2.

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