Erin Strecker
July 06, 2012 AT 01:54 PM EDT

Jackson Rathbone, who plays Jasper in the Twilight films, welcomed a son, Monroe Jackson Rathbone VI, with girlfriend Sheila Hafsadi on Thursday, People reports.

Rathbone wrote on Twitter, “Thank you ALL for the love & support! Sheila & I couldn’t be happier to have such a beautiful, healthy baby boy, Monroe Jackson Rathbone VI,” and “Feeling so blessed! What an amazing day! Love and respect, Bone Daddy.”

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