(Photo credit: Vivien Killilea/Getty Images)

Michael Weatherly is a father for the third time.

The "NCIS" star, 45, and his wife, internist Bojana Jankovic, welcomed a son, Liam Weatherly, on Oct. 29, according to the actor.

Michael Weatherly and Wife Expecting Baby #2

"Beautiful Bojana gave birth to 10lb Liam Weatherly today, the most important day of the week (NCIS Tuesday 8pm CBS) #NCIS," he tweeted shortly before the show aired.

This is the couple's second child together. After they wed in 2009, they welcomed their first child, a daughter named Olivia, in April, 2012.

Weatherly also has a teenage son, August, from his marriage to Amelia Heinle.