"Hansel & Gretel: Witch Hunters" star Jeremy Renner and his ex-girlfriend, lingerie model Sonni Pacheco, welcomed their first child Thursday, reports Us Weekly.

Baby News: Jeremy Renner Is a Dad!
The actors rep confirmed the birth of baby Ava Berlin Renner, saying, "They are beyond thrilled. Mother and daughter are doing great."

A source revealed to the mag about Renner and Pacheco's romantic past. "They used to date but it wasn't serious. [Renner] was being ultra-secretive about it, but she has been going on about her life and not hiding it."

Pacheco has been staying in an L.A. home awaiting the arrival of their firstborn.