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John Xintavelonis (also known as John X) is a Tasmanian actor and comedian, known in Australia for his performance as Pumbaa the warthog in the Australian production of the stage musical, The Lion King.
Xintavelonis has worked for many Tasmanian production companies including the 10 Days On The Island Festival, Big Monkey, ExitLeft, Fifth Wall, Zootango, Theatre Alfresco, Theatre Royal/XWWX, Hills Centre and Old Nick.
His screen work includes television shows Something Hot Before Bed (Australian Broadcasting Corporation); TODAY (Nine) Sunrise (Seven); Football Life (WIN TV) and film appearances in Sound Of One Hand Clapping (Artist Services) and Teamwork (IzzyTheDog).
He has also hosted a Tasmanian radio program as well as doing voices for animations, advertisements and puppet theatre. John played Mr. Braithwaite in Billy Elliot the Musical in Sydney and Melbourne. In August 2009 he travelled to South Korea with Jekyll & Hyde The Musical where he played the roles of Lord Savage and The Spider. In November 2009 he appeared on City Homicide for 7 Network and John Safran's Race Relations for ABC TV.