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.

PRIVATE FIRST CLASS MICKEY [Voice Impression: Alan Tudyk]: 

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

Mickey is the awkward, silly one of the bunch, he can certainly be serious here and there, but more often than not he has something funny to say. He carries the Rocket Launcher and is the resident explosives expert, often the one to press a button or pilot an aircraft. He's very high energy and weirdly seems to enjoy himself despite the circumstances.

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, Mickey 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 joins Dutch in attempting to arrest an insurrectionist leader.

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=EmDrhbScpOM

Mickey seems to have an average American accent, his voice is the lightest register of the bunch, he plays his role in the game almost exactly like his role in Firefly as Wash the resident pilot and tech-support.

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!!