Ranked: These Comedians Have Made Us Laugh For Decades

23. Zach Galifianakis

Zach Galifianakis first earned recognition with his TV specials on Comedy Central and VH1. However, it was his work as Alan in The Hangover trilogy that earned him global recognition as a comedy star.

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Since then, he has made audiences laugh in films like Due Date, The Campaign, and The Lego Batman Movie. Galifianakis earned two Primetime Emmy awards for his entertainment show, Between Two Ferns. To date, he has interviewed guests ranging from Justin Bieber to President Obama.