Who is this lizard-man on the Return of the Jedi poster?

Question

This poster by Tibor Helényi (made to advertise the opening of Return of the Jedi in Hungary in 1984) is pretty respectful of the original and drawn by someone who appears to have seen the film, or at least other posters advertising the film.

Who is the lizard guy in the bottom left corner?

For the record I'm aware that Martin Schneider of DangerousMinds.com notes that the artist has a tendency to add "big scary lizard creatures who find no correlative in the movies". I could only find one other example (in his earlier poster for A New Hope) which doesn't seem to represent much of a tendency.

Answer 1

It's a Rancor.

Imagine if someone described a Rancor to you, based on Ralph McQuarrie's early sketch design. Imagine that description went through some dubious language translation.

Wouldn't it look something like that?

For reference, here's a copy of that sketch. To me, it's easy to get from this sketch to that image if all you had was a written description that had been translated from English.

Also this early concept art by Joe Johnston shows the tusks:

Answer 2

Echoing NKCampbell's comment, this could be Gamorrean Guard Thok. Certainly the tusks are dramatically elongated, and he's more lizard than pig, but you can certainly see the resemblance in the horns, pig nose, tusks, squinting eyes, green skin and the fact that he's holding a pike.