Dexter Smitten With Jimmy

Jimmy Smits joins the cast of Dexter for its third season, kicking off this fall

Jimmy Smits just nabbed a killer role.

The TV vet has joined the cast of Showtime's conflicted-serial-killer series, Dexter. He has signed on for 10 of the 12 episodes for the upcoming third season, which begins production Monday for a Sept. 28 debut.

Smits will play Miguel Prado, an ambitious DA hailing from one of Miami's most powerful political families. He joins forces with Michael C. Hall's titular character to find another killer whose dastardly doings affect them both.

All in all, a pretty good gig. But the hours might be murder...