As previously mentioned the Joeys feature 6 nominees (nominees also up for the Emmy are italicized) & I will also predict the winner of each category for the Emmys. Without further ado...
Josh Holloway (Sawyer, "Lost")-Holloway brought his performance to another level in the last 2 seasons of "Lost" as Sawyer became the leader of the castaways, along with Jack. Holloway earns this nomination for showing Sawyer's heartbreak over Juliet's death & his portrayal of shock & joy at reuniting with her in the sideways universe.
Michael B. Jordan (Vince, "Friday Night Lights")-The character of Vince could've easily become a cliche, a troubled black kid from the inner city with no dad & a junky for a mom, but Jordan was up to the task of making Vince into a full formed person. He completely sold Vince's evolution into a leader on the football field & a much better person off it.