
Zachary Knight Galifianakis (born October 1, 1969) is an American actor and comedian. He appeared in a Comedy Central Presents special and presented his own talk show, Between Two Ferns with Zach Galifianakis, which earned critical acclaim. He was nominated for the Primetime Emmy Award for Outstanding Lead Actor in a Comedy Series in 2017.
Galifianakis has starred in films including The Hangover trilogy (2009–2013), Due Date (2010), It's Kind of a Funny Story (2010), The Campaign (2012), Birdman or (The Unexpected Virtue of Ignorance) (2014) and Masterminds (2016). He has also voiced characters in animated films such as Puss in Boots (2011), The Lego Batman Movie (2017), Missing Link (2019), Ron's Gone Wrong (2021) and The Bob's Burgers Movie (2022).

The Hangover
2009 · as Alan Garner

Lilo & Stitch
2025 · as Jumba

Into the Wild
2007 · as Kevin

Tulip Fever
2017 · as Gerrit

The Lego Batman Movie
2017 · as Joker (voice)

Puss in Boots
2011 · as Humpty Dumpty (voice)

The Hangover Part II
2011 · as Alan Garner

The Hangover Part III
2013 · as Alan Garner

The Bob's Burgers Movie
2022 · as Felix Fischoeder (voice)

Birdman or (The Unexpected Virtue of Ignorance)
2014 · as Jake

The Muppets
2011 · as Hobo Joe

Ron's Gone Wrong
2021 · as Ron (voice)

G-Force
2009 · as Ben

What Happens in Vegas
2008 · as Dave the Bear

Due Date
2010 · as Ethan Tremblay

Masterminds
2016 · as David Ghantt

Up in the Air
2009 · as Steve

Keeping Up with the Joneses
2016 · as Jeff Gaffney