From 2012 until 2014, Tempest played the role of Doctor Josh Gallagher on the popular New Zealand soap opera Shortland Street. He also appeared in a number of short films, including The Institute and Teddy.
He graduated from New Zealand's Unitec Institute of Technology with a degree in stage and screen acting.
He helped establish a professional performance troupe known as the Outfit Theatre Company.
He spent the first nine years of his life in Doncaster, England, and later lived in both the Channel Islands and New Zealand.
He and KJ Apa both rose to fame for their roles on Shortland Street.