Now that Season 5 of HBO’s “Game of Thrones” has ended, fans are speculating how the story will progress in Season 6. After some more characters were killed in the season finale, at least a few fans hope that some surviving characters will return, such young Bran Stark and his little brother Rickon.

And should these two return, Bran and Rickon will look remarkably different than they did in Season 5 -- because the actors who played them have grown up. While Bran Stark reportedly will appear in Season 6, it's unknown if Rickon will return.

 E! News recently showed how actors Isaac Hempstead Wright and Art Parkinson, who played Bran and Rickon Stark, respectively, have changed since their last appearance on the show. Both have grown up and look very different.

Wright last played Bran in Season 4, and has since grown several inches taller and appears more mature. The Huffington Post reported that Wright, who did not appear in Season 5, has been busy with school and appreciated the period he was on break from "GoT."

“It’s been bizarre," Wright said, "more so because I’ve spent my first full term at school, which has been quite a shock. I usually have my entire summer eaten up by shooting. But it’s been nice to have this year free because I've had some important exams at school.” 

Parkinson last played Rickon in Season 3. His character was sent away with Osha during Season 3, episode 9, when he looked very young, with slightly chubby cheeks and innocent looking eyes. Now, Parkinson has grown tall and his seems more angular and mature. The 13-year-old recently played Ollie in the summer blockbuster film “San Andreas,” starring Dwayne Johnson and Paul Giamatti. BBC News reported that Parkinson wasn’t fazed working alongside Johnson and other Hollywood A-listers. "The filming was amazing, working with people like Paul Giamatti and Dwayne Johnson. [Dwayne] is a really nice, down-to-earth guy, and he gave me a lot of tips on set and helped me," Parkinson said.