JASON O'MARA
Life on Mars (Thursdays, 10 p.m., ABC)
WHERE YOU'VE SEEN HIM: Most recently as the handsome book publisher Stuart Maxson on ABC's Men in Trees, and the handsome-but-creepy pyromaniac Billy Croelick on The Closer.
WHY HE'LL BREAK OUT: O'Mara's rugged Irish actor vibe — complete with a tough but tempered charm and stunning eyes — makes him stand out in an ever-growing crowd of actors from across the pond.