Mark’s career began with performances with the Orange Theatre Company playing the lead role in Oliver! aged 10, The Sound of Music, Annie and Anything Goes. His first TV appearance was in the children's television program Outriders followed by a role in the film Balmain Boys. At the age of 14 Furze was cast in Water Rats. He appeared also in the movie Jessica as the son of the main character.
Mark was cast to play Ric Dalby in Home and Away for four years from September 2004. He took part in It Takes Two, a celebrity singing challenge, partnered with Rachael Beck; the pair came third overall. Mark appeared as a contestant on the 2007 UK TV show Soapstar Superstar, filmed in England, finishing third in the competition.
Mark played the lead role in the short film Count Me In, written and directed by Johnny Barker and Jared Kahi. Furze portrayed Trent in the television series Underbelly – The Golden Mile in 2010. He played the role of Damian in the Australian feature film A Heartbeat Away and played the role of Dodd in the US thriller Strays. Other films include I Can Only Imagine, Stereoscope, Breaking In, Tell Me How I Die, Bornless Ones and Seven Cups.
To add to his multi-talented career, Mark has also played in rock bands, forming the band Falcon Road and joining New Zealand-based Shotgun Alley in February 2011, who released three albums. He was also seen in the video clip of Guy Sebastian’s single Elevator Love in 2006, playing Bass guitar.