Sean Hayes
(© Tristan Fuge)
Sean Hayes
(© Tristan Fuge)
Tony Award nominee Sean Hayes will join the cast of NBC's Up All Night for a multi-episode arc, according to TVGuide.com.

The actor will play the former accompanist of Ava (played by Maya Rudolph).

Hayes was Tony-nominated for his work in Promises, Promises, and is best known for his Emmy Award-winning portrayal of Jack on NBC's Will and Grace.