Leigh Hart (born 20 July 1970) is a New Zealand comedian, radio announcer and performance artist who is also known as "That Guy".

After working on the Channel Tunnel for two-and-a-half years in the early 1990s, he returned to Christchurch and then founded the rock band "Wild Turkey" with his brother Greg and friend Matt Johnson.

[5] Returning to Christchurch, Hart enrolled in film and television school, where he began a satirical newspaper titled The Moon.

[6] In 1996, producer Marc Ellis recruited him for a vacant guest spot on a 1996 episode of SportsCafe, in which he appeared as an "international snail trainer.

[6] A spin-off show presented by Hart, Jason Hoyte and Jeremy Wells, Late Night Big Breakfast, ran from 2014 to 2016,[7] and was revived for an additional season in 2020.

[10] Prior to the show airing, Hart wrote a humorous piece for the New Zealand Herald entitled "That Guy: Let's hear it for the Maori sasquatch", about his experiences attending a conference on Bigfoot.

"[12] In 2012 he presented Olympico, a three episode series with Jeremy Wells and Jason Hoyte which lampooned the London Olympics.