Thomas Brodie-Sangster plays Newt in the newest young-adult post-apocalyptic sci-fi film "The Maze Runner," but do you know that he also auditioned for the role Gally?

Aside from auditioning for Newt,  Brodie-Sangster also read for Gally, a role that was eventually given to Will Poulter, The Columbus Dispatch reported.

Gally is considered the main antagonist of the film. He is a Glader who sticks to the rules and has become Thomas' (Dylan O'Brien) first enemy in the giant maze called The Glade, after the latter breaks protocols in his attempt to lead the group to their escape.

Newt, on the other hand, is the second-in-command to Alby (Aml Ameen), the leader of all the amnesiac boys trapped in the maze. He and Thomas are friends.

Brodie-Sangster, who is best known for his portrayal of Richard Curtis - stepson of Liam Neeson's character in "Love Actually," said that he liked both roles.

"Newt is friendly. He's the lovable nice guy who is very well-respected within The Glade," he told The Columbus Dispatch of his character.  "He's also got an interesting back story and more of a darker past as well. There's lots of stuff to play with there, which I really enjoyed."

But Brodie-Sangster admitted that he had not heard of James Dashner's novel series, where the film is based, before he went to audition. He said that Dashner's trilogy was less famous in England than it is in the US, plus, he thinks that he belongs to the "wrong age group" that is why he is not familiar with it.

"As soon as I found out about the film, I researched the book," the actor, who also starred on "Game of Thrones"  said. "Younger cousins of mine had read it and are fans of it. That's when I realized that it had a massive fan following."

"The Maze Runner" was filmed in Louisiana, and what made the shooting more exciting were the snakes and spiders on the location.

"We were seeing 10 snakes a day at the beginning and then by the end we were still catching four a day," actor Brodie-Sangster told New  York Post at a Cinema Society screening of the 20th Century Fox movie last week at SVA Theatre.

"Not all poisonous, but we had five different types of venomous snakes and two different kinds of poisonous spiders," he added. "There was a scene Dylan [O'Brien] and I do by a log... we did it for hours, and then we got up and a bit of bark fell off and there were two black widows where we were resting our backs. It kind of added to the excitement."

Meanwhile, following the successful box office opening of the film, Fox has already given a release date for its sequel.

"Maze Runner: Scorch Trials," based on the second book in Dashner's novel trilogy, is slated for a Sept. 18, 2015 release, according to The Hollywood Reporter.