A Guide For the New and Returning Characters in "Grey's Anatomy" Season 19

Terho plays Lucas Adams, another face in the new class of first-year surgical residents. His character description, per Deadline, states that he's "the charming black sheep of his family. Likable to a fault, he has a great mind but doesn't have the grades to match. He's determined to prove himself as a surgeon, just like many in his family that have come before him, but he will have to stop relying on his people skills and put in the work."

Terho already has one connection to "Grey's Anatomy": he costarred with Jake Borelli (aka Levi Schmitt) in the 2020 rom-com "The Thing About Harry."