Coppin's film credits include The Survivor, Mad Max 2 (as "Defiant Victim," strapped to the front of a deathbuggy), and Reckless Kelly. In television, the actor guest starred on the Australian series Water Rats and on Nightmares & Dreamscapes, playing Richard Fornoy in the episode "The End of the Whole Mess." On stage, he has played Puck in Baz Luhrmann's stage version of A Midsummer Night's Dream and has frequently impersonated famed Australian actor and dancer Robert Helpmann.