Quoc: The Hatter appears in Tim Burton's 2010 version of Alice in Wonderland portrayed by Johnny Depp and given the name Tarrant Hightopp. In the film, the Hatter takes Alice toward the White Queen's castle and relates the terror of the Red Queen's reign while commenting that Alice is not the same as she once was. The Hatter subsequently helps Alice avoid capture by the Red Queen's guards by allowing himself to be seized instead. He is later saved from execution by the Cheshire Cat and calls for rebellion against the Red Queen. Near the end of the film, the Hatter unsuccessfully suggests to Alice that she could stay in Wonderland and consummate his feelings for her.

Answer this question based on the passage: who plays the mad hatter in alice in wonderland?
HW Chung: OK, some thoughts:
This is the relevant information: The Hatter appears in Tim Burton's 2010 version of Alice in Wonderland portrayed by Johnny Depp and given the name Tarrant Hightopp. The answer is Johnny Depp.