Sure he’s been in seemingly dozens of things since then, but to Losties he will always be the Man in Black. Yes, Titus Welliver is in tonight’s new episode of Grimm. He and his onscreen brother Mark Pellegrino have been all over our screens since they left The Island, have you noticed? Well we’re happy to have him on Grimm. We have the synopsis and a clip for you:

“GRIMM”
“THREE COINS IN A FUCHSBAU”
03/02/2012 (09:00PM – 10:00PM) (Friday) : THE SEARCH FOR A MURDER SUSPECT LEADS TO POWERFUL RARE COINS AND ANSWERS TO NICK’S PAST – TITUS WELLIVER GUEST STARS –A failed jewelry store robbery results in a murder that finds Nick (David Giuntoli) and Hank (Russell Hornsby) immersed in a hunt for rare coins. Nick soon learns that these coins have an unsettling effect on whoever possesses them, as Hank and Captain Renard (Sasha Roiz) begin to exhibit unusual behavior. Meanwhile, a mysterious old friend of Aunt Marie’s (guest star Titus Welliver, “Lost”) comes to Nick with information about his family and what led to his parent’s death. Bitsie Tulloch, Silas Weir Mitchell and Reggie Lee.

Grimm, starring David Giuntoli, Russell Hornsby, and Sasha Roiz, airs Fridays at 9/8c on NBC.