The Old Republic's "Sarlacc Enforcer" class in a joking manner, rather than actually including it in the game. Can you imagine the balancing issues which would surface when dealing with an archetype which can't move, but can instantly devour nearby players? That's a veritable PvP nightmare.
Check out the game's official site for the full dossier on the sand-mouth's weapons, abilities and planet-destroying psychic lasers. Really, how's a mere Bounty Hunter or Smuggler supposed to stand up against that?