I'm pretty sure that was a licensed line, there were a number of different figures made actually. I've got a Darth Vader, and there were others too.
http://www.potf2.com/potj/forums/topic.asp?TOPIC_ID=15437&SearchTerms=in+character
In 1993, a US video store company called Suncoast Video issued a series of 10 vinyl Star Wars figures called "In Character" and produced by a company called "Out Of Character".
Ben Kenobi
C-3PO
Chewbacca
Darth Vader
Han Solo
Luke Jedi
Luke X-Wing
Princess Leia
R2-D2
Stormtrooper