During the final moments of the Thursday, May 7, episode, titled “Hearts and Flowers,” it was revealed that Buck signed paperwork making him the legal guardian of 4-year-old Theo after his parents, who utilized Buck as a sperm donor, both died in a tragic accident.

Photo shoot by Brian Zak for his interview with Decider.

Oliver Stark sits down with Sophia Soto to talk about the season 9 finale, his initial reaction to bringing Theo back, how Buck is going to approach parenting, how season 10 will further explore his decision, and more.

Oliver Stark breaks down the Season 9 finale for TV Insider.

We've added screenshots from Episode 18, "Hearts and Flowers," of Season 9 of 9-1-1.

We've added screenshots from Episode 17, "I Got You Babe," of Season 9 of 9-1-1.

Aitch Alberto's short film The Long Con is set to make its world premiere at the Los Angeles Latino International Film Festival.

Oliver Stark stopped by for a quick interview with Nerdtropolis at Rescueverse in New Jersey.

Each new season means peeling back additional layers of the core characters. While it’s a surprise for audiences to see different sides of beloved characters, the actors themselves are also learning new things about them.