Wes is one of the 9 main characters in the show. He won't appear until episode 4 but is then a regular past that.

Wes is a medic whose main concern is the well-being of whatever team he's with this month. He is particularly bright and clever, reading others very quickly. He rarely shows his emotions, maintaining a consistently serious and unflappable exterior. He tends to speak only when necessary and is comfortable with silence. He values action over words and believes in personal responsibility. He is a good medic but is only truly loyal to Lilly, his partner. He treats everyone with professional courtesy until they show themselves to be unprofessional. He is a heavy drinker and often lacks patience if someone gets hurt and gives him more work to do.