As well as featuring old favourites like Dexter (Michael C Hall), Deb (Jennifer Carpenter) and Quinn (Desmond Harrington), the snaps give us our first look at the new characters played by Edward James Olmos and Colin Hanks.
We've already been promised that the sixth season of Dexter will be a "firestorm", and the list of stars also appearing includes Mariana Klaveno, Brea Grant, Billy Brown, Mos Def, Molly Parker and Josh Cooke.
Dexter will return with new episodes on Showtime later this year. The fifth season is currently airing in the UK on FX.
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Take a look at some photographs from the sixth season of Dexter below: