Who he plays: Rick, a highly successful, highly irritable workaholic who's hung up on his juice order and his ex-wife. Without Charlie, his life would fall apart . . . and it kind of does.
Where you've seen him: Diggs first starred in Rent on Broadway (along with Idina Menzel, to whom Diggs was married for 10 years). The actor has since been in many, many TV shows and movies including Private Practice, Empire, and Opening Night. (Also that one 2002 episode of America's Next Top Model — never forget).