Malcolm-Jamal Warner, best known for playing Theodore “Theo” Huxtable on The Cosby Show, has died. He was 54.

TMZ first broke the news, no other details were immediately made available.

Notoriously private about his personal life, Warner is seemingly survived by his wife and daughter, the latter who was born in 2017. While he has shared photos of them both on social media, their identities have remained private.

Warner was just 14 when The Cosby Show premiered in 1984, with the actor starring as Bill Cosby’s only on-screen son until the show wrapped in 1992. In that time, he also hosted Saturday Night Live, appeared on Sesame Street and played his Cosby character on spinoff A Different World for a couple episodes.

He also voiced The Producer from 1994-1997 on The Magic School Bus, before costarring on Malcolm & Eddie opposite Eddie Griffin from 1996-2000. Later work included Jeremiah on Showtime, Sherri Shepherd’s sitcom Sherri, BET’s Reed between the Lines, and, most recently, The Resident and 9-1-1.

Warner was also a Grammy winner, picking up the Best Traditional R&B Performance trophy alongside Robert Glasper Experiment featuring Lala Hathaway for the song Jesus Children in 2015.

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