Zak Orth (born October 15, 1970) is an American actor known for his roles in Wet Hot American Summer, The Baxter, Melinda and Melinda, In and Out, Music and Lyrics, and NYC 22. He also starred in the NBC television drama Revolution as Aaron, and appeared as a man haunted by psychic visions in an episode of the Fox series Fringe.

Early life and education
Orth was born Adam Zachary Orth in Libertyville, Illinois, the son of Jane (Oehms), a piano teacher, and Robert Orth, an opera singer. Orth is an alumnus of The Theatre School at DePaul University.

Career
He is a good friend of the members of the comedy group Stella and has appeared in many of their short films, as well as their 2005 TV series. He is also known for his brief role in Baz Luhrmann's adaptation of Shakespeare's Romeo Juliet, as the character Gregory.

He is also one half of The Doilies, a musical comedy group, alongside Michael Showalter.