Mae Whitman might be a little upset at her former onscreen mom, Lauren Graham, because, like real parents sometimes do, she just spilled a big secret! Whitman, 36, welcomed her son Miles in August 2024 and managed to keep the father’s identity under wraps—until now.

The 'Parenthood' actress welcomed her first baby in August 2024 Mae Whitman's Up Here costar Carlos Valdes is reportedly the father of her baby son, Miles. The actress' longtime friend and Parenthood costar Lauren Graham appeared on the Monday,

When Whitman revealed her pregnancy and birth news via Instagram in May and August 2024, respectively, she did not identify her son’s dad.

The 'Gilmore Girls' star disclosed the famous father —who is currently starring on Broadway — of Mae Whitman's baby.

The baby daddy is out of the bag. Mae Whitman hadn’t revealed the father of her baby, born in August 2024, but then Lauren Graham spilled the beans on Dax Shepard’s podcast. The father of Whitman’s son, Miles, is her former costar Carlos Valdes, who is currently starring in Hadestown on Broadway. Oops!

While speaking to their fellow Parenthood alum, Dax Shepard, on the actor's Armchair Expert podcast, Graham accidentally revealed the father of Mae Whitman 's son: Carlos Valdes. While Whitman has never publicly shared the identity of the baby's dad, the pair did work together on Up Here.

"I'm trying to think the last time [I saw her]," Graham said of Whitman. "They're in New York now. Carlos, her baby daddy, is on Broadway in Hadestown, which I feel happy to plug because he's fantastic in it, Carlos Valdes."

Six months after Mae Whitman announced she'd welcomed son Miles, her Parenthood costar Lauren Graham revealed the baby's father is Carlos Valdes. See what The DUFF alum has shared about her world.