Note: For this character and anyone else with this note included, there may be only a very small role involved. These roles will have lines from the books, which were never voiced, because of this it would also then be ideal that the same voice actors replace the characters lines from in-game as well, so that within the film the audience can make the connection between the two. If voice actors can be successfully obtained for these characters I will be able to consider expanding the line selection from the book to encompass more of that story.

GUNNERY SERGEANT BUCK [Voice Impression: Nathan Fillion]: 

Official Depiction Overview [How he is presented in the canonical work]:

Buck is the leader, he boasts a commanding demeanour but he also cares about his squad and acts kinda like a father figure for them. If Rookie were not the protagonist of the game, Buck would be. He's in a will-they-won't-they relationship with Dare, full of history and past conflict that gets brought up and relived mid-mission, complicating their relationship. But throughout the game he proves he can be a solid partner. All the while Buck kicks some serious tail in his other missions, and has witty banter with the anti-authority sarcasm machine of the team; Romeo. 

Our Depiction Overview [How he will be presented in our film]:

Many of the lines featured in the film will be borrowed from the game in order to refresh the audience on the events that took place. However, Buck will also play a decent role in one of the later segments, since he's involved in a later mission involving rebel insurgents. In that section of the story he has a little more banter with Romeo, and then panics over Rookie as he finds himself in a predicament.

How He Sounds

His voice as it's depicted in the official media can be heard in its entirety in this video;

https://www.youtube.com/watch?v=2SV3QADJgNY

Buck seems to have an average American accent, his voice is a medium register, and to be honest he sounds about the same as most of his other roles you may have seen Nathan Fillion appear in. Though he's not quite as airheaded as Guy Gardner, he does sound quite alike to his role in Firefly, to John Nolan in The Rookie cop show (which is the sole reason I'm now having to change my film's name), and even in his very own fan-film of Uncharted.

Ultimately though, I'm open to hear different interpretations of his character as well as attempts at matching his voice.

I look forward to hearing your auditions!!