Originally appeared on E! Online .

Kelsey Grammer is saying cheers to a new addition.

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The "Frasier" alum, 70, shared that his wife Kayte Walsh , 46, gave birth to their fourth baby together, a son named Christopher.

"It was like three days ago," Grammer told cohosts Danielle Fishel, Will Friedle and Rider Strong during the Oct. 27 episode of their "Pod Meets World" podcast . "Christopher's just joined the family."

And the actor — who also shares kids Faith, 12, Gabriel, 10, and James, 8, with Walsh — emphasized that his newborn is becoming part of a big blended fam. After all, Grammer is also dad to Spencer, 41, whom he shares with ex Doreen Alderman, and Greer, 33, with ex Barrie Buckner, as well as Mason,

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