Yoda

Yoda was a member of the Jedi Council who had an addiction to ketamine until he was killed by the bounty hunter Jango Fett, who was really trying to kill Luke.

Involvement in Story
His first canon appearance (The Star Wars roleplays prior aren't considered canon anymore) was when he was elected Intergalactic Lord. He soon trained Luke after Darth Vader's defeat on Sanghelios. Eventually, he was accidentally killed by Jango Fett and died.