PORTSMOUTH — Cole Delisle is a devoted "Star Wars" fan, and on Saturday he stepped into character as Clone Commander Gree, if only for a day.

The Make-A-Wish foundation granted Delisle’s wish with help from his friends and family. All told, more than a dozen "Star Wars" characters surprised the 13-year-old brain tumor survivor with his very own party at the Portsmouth Masonic Lodge.

Gov. Maggie Hassan also proclaimed Saturday as “Cole Delisle Day” in his honor.

“I can’t believe all the people who have come all the way from other places, just to see me,” said Delisle, who lives in Portsmouth. “I’m very excited and very, very hot.”

Fitted into his very own Clone Commander armor, Delisle was joined on stage by the 501st Legion of New England. A volunteer organization, the 501st Legion impersonates "Star Wars" characters for events like Cole's party.

In December, Delisle started suffering from headaches and nausea, said his mother, Diane Bilodeau. After an MRI at the Boston Children’s Hospital, doctors learned he had an inoperable brain tumor. He has just finished his chemotherapy treatment and will be finishing up radiation in the coming weeks.

“The biggest thing for him is that he’s been really tired,” Bilodeau said. “But he’s been able to keep up with school work, last semester. We’ve just had a lot of support, a lot of support.”

“He’s an incredible human being,” said Cole’s father, Dale Delisle. “He was completely surprised and fortunately we were able to keep it a secret.”

A "Star Wars" fanatic, Cole and his father had just finished a 3,800-piece Lego Star Wars “Death Star” before the event.

“He was offered the wish and he didn’t want to ask for anything," said Dale Delisle. "He wanted to make sure it was small, but it took so many conversations to convince him that he could have something. That it was OK, it’s your day.”

Through cooperation with the New Hampshire Make-A-Wish foundation and the 501st Legion, Cole’s armor was specially handmade. He plans to wear the armor again on Halloween.

“I’m a big fan of Make-A-Wish and what they do, so I jumped at the opportunity,” said 501st Legion representative Chris Gregoire. “I’m always like, yeah, whatever you guys want, we’ll figure it out.”

The New Hampshire Make-A-Wish foundation grants about 85 to 90 wishes a year, said Make-A-Wish VP of Development Donna Parker. She said the foundation was very excited to be able to make Cole’s wish come true.

“He was really surprised as we wanted him to be,” said Bilodeau. “I think he’s going to need some time now to take it all in.”