November 20, 2013 11:00 AM

Randall Michelson/Wireimage

It will be a real life Party of Five for Scott Wolf!

The Perception star and his wife Kelley are expecting their third child — and first daughter! — in May, he announced Wednesday on Twitter.

“Having a daughter in May. She will own me. I’m already mad at the boys. No words could express how full our hearts are. Luckiest guy I know,” he writes.

Wolf and the Real World: New Orleans alum, who is now a practicing life coach, tied the knot in 2004 and are already parents to sons Jackson Kayse, 4½, and Miller William, 1.

Baby girl has a lot to live up to: shortly after the birth of his second son, Wolf joked to PEOPLE his firstborn had set the bar high.

“Jackson was a tough act to follow, but so far Miller is nailing it,” he said.

Access Hollywood was first to report the news.

— Wade Rouse

Video Flashback: Scott Wolf Jokes About His Son’s Table Manners

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