One fan who signed the petition said: "I will stand up and cheer when I see him on screen."
Another said: "Let's make the most embarrassing thing that ever happened to this kid, the best thing as well."
Lucasfilm, who make the Star Wars films, told Newsround: "Obviously there has been a tremendous show of support for Ghyslain with tens of thousands of fans rallying around him.
"However, we are deeply saddened by the current situation and any difficulties this unwanted publicity might be causing him and his family."