Oliver Stark’s 9-1-1 character ... when he learned that he had an older brother who died of leukemia just after he was born — and that he was conceived with the hopes of donating his bone ...

Oliver Stark and Ryan Guzman are taking a look back with Us at some of their most memorable 9-1-1 scenes. Stark, 33, and ...

"I think he's almost more comfortable being trapped as long as he's able to do his job," Oliver Stark tells TODAY.com of the finale. "Being on the outside was the most jarring thing for him." ...