Zach Galifianakis
It is not uncommon for people to be afraid of heights, and we are often surprised to hear that even celebrities share this fear. Zach Galifianakis is one such star who admits to being scared of heights.
The actor is petrified of heights to such an extent that he once refused to participate in a press conference for a movie which was being filmed at the well-known Morro da Urca in Brazil.