Samuel Jonathan McMillan (born 2 July 1983) is an Australian musical comedian, satirist, writer and radio presenter who performs under the stage name Sammy J. He embraces a variety of media in his comedy, including the use of video and self-composed music, and frequently collaborates with Randy the purple puppet. He has released several CDs and DVD compilations of his work; most recently the album Symphony in J Minor which was nominated for Best Comedy Release at the 2019 ARIA Awards. He has performed at comedy festivals in Australia, Edinburgh and Montreal, and has appeared on various Australian television shows, including Sammy J & Randy in Ricketts Lane, a sitcom based on the duo's touring show of the same name. He currently produces a weekly political sketch for ABC Television, satirising the news through various characters, and is the Breakfast presenter on ABC Radio Melbourne.