Mark Trenwith and Dave Baihlit as ABCTV's Bounce Back Man and Boing Big Al and Mark in "Give Us A Hug" 2006 Fringe Big Al and Mark on set with Bill Hunter in "Yobbos Up The Guts" due for release 2007 Jarrod Fitch and Mark in "Good Times" 2004 Fringe k k dsf Mark as The Adelaide Thunderbirds mascot "Sparky" in 2006