Callan is a Hollywood artist from Australia. He is famous for his character in Flipped. He did his schooling from a boarding school. He started his career at a very young age of 12 and portrayed a character in a television series, Comedy Inc.
After a year, he worked in another small screen project, blue Water High, in which he participated as the role of Ben. In 2010, he appeared in a movie, Flipped and played the role of Loski. He was casted for the character of Jay in the movie, The Great Gatsby, which was released in 2012.