We recently reported the return of two of Lost's castaways and now we have word that one mysterious character will come back as well. According to The Hollywood Reporter, Titus Welliver will return in the final season as the unnamed character who served as Jacob's (Mark Pellegrino) nemesis and was simply called "The Man in Black."

Welliver's unnamed character appeared in six episodes last season and while it wasn't clear how many episodes he would appear in for this final season, it does seem that there could be some closure with this character due to his return. The character last appeared in the Season 5 finale.

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But that's not all we have from Lost today. ABC has released a brand new TV spot promo for the sixth and final season and you can watch this new video below.

Lost stars Matthew Fox, Naveen Andrews, Josh Holloway, Jorge Garcia, Daniel Dae Kim, Yunjin Kim, Evangeline Lily, Terry O'Quinn, Michael Emerson, Mark Pellegrino and will debut its sixth and final season on February 2.