Another Comic-Con goodie has hit the Internet. Showtime debuted a new trailer for the sixth season of Dexter in San Diego on Thursday, and the clip provides a first look at new guest stars Mos Def, Edward James Olmos and Colin Hanks, and seems to promise a whole lot of conflict for our "hero," Dexter (Michael C. Hall).

The new season debuts on Oct. 2. Watch the trailer above.

[via BD]