The 29-year-old actor, who presented at the show, wore a two-button notch lapel tuxedo made by Giorgio Armani. Yvonne, 27, wore a Paule Ka white strapless cocktail dress with a black sash and bow to the after party.
Zach was added as a last-minute presenter in place of NBC news anchor Brian Williams, who is currently covering updates on Haiti.
The Chuck star said (via NYTimes) that he was too nervous to eat before going onstage!
10+ pictures inside of Zachary Levi and Yvonne Strahovski at the 2010 Golden Globes and after party…