Grapefruit is one of the main character in the web series Annoying Orange and its TV show The High Fructose Adventures of Annoying Orange. He is one of Orange's enemies (and sometimes one of his friends).
From 2010 to 2021, he was voiced by Robert Jennings (also known as Bobjenz), who also played Liam the Leprechaun. Ever since 2021, he is voiced by Jon Bailey.