Williams appeared to confirm the couple welcomed the baby in an Instagram post on Monday, Sept. 28

NEED TO KNOW

• Williams hinted at the newborn’s arrival with a Do The Right Thing-inspired video featuring baby bottles on Instagram on Monday, Sept. 28
• The actor also shares daughter Sadie, 11, and son Maceo, 10, with ex Aryn Drake-Lee
• Onieva confirmed her pregnancy in May

Jesse Williams’ family has grown!

The Grey’s Anatomy star, 45, has welcomed his third baby, his first with partner Alejandra Onieva.

In an Instagram post shared on Monday, Sept. 28, the actor hinted that the couple welcomed their first child together by reenacting a scene from Spike Lee’s 1989 film Do the Right Thing. In Williams’ reenacted scene, he opens a refrigerator filled with baby bottles, and people can be heard speaking Spanish in the background. Onieva, 34, is from Spain.

“English! English, alright I want my son to speak English,” Williams says, quoting the movie. “Bad enough his name is Hector.”

Reps for Williams and Onieva did not respond to PEOPLE’s request for comment.

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Williams is already dad to daughter Sadie, 11, and son Maceo, 10, whom he shares with ex Aryn Drake-Lee.

In May, news broke that Williams and Onieva are expecting their first baby together. She then confirmed her pregnancy by sharing several photos on her Instagram featuring her baby bump.

In one photo, Onieva wore a pair of white striped pants and a cropped white sweater that was open at the top of her stomach. Her head was turned to the side as she prominently displayed her bump. A video also showed Onieva accentuating her bump in a red minidress while posing on a beach.

The couple was also photographed together on May 22 in Los Angeles. Onieva wore cobalt blue jeans and a matching cobalt blue jacket, adding a cropped tank top that hit at the top of her stomach. Williams walked next to her, wearing blue jeans and a gray hoodie.

Williams and Drake-Lee filed for divorce in 2017. Shortly after their split, Williams filed for joint legal and physical custody but later alleged that Drake-Lee was restricting his access to their children. Drake-Lee then requested sole custody. The custody battle was eventually settled in 2018, giving Williams and Drake-Lee 50/50 joint legal custody.

Williams and Drake-Lee faced off in court again when the actor temporarily moved to New York City in 2022 for his role in the Broadway production of Take Me Out. Since then, the two have gone back and forth in court over custody issues.

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