Lewis was born in Brisbane, Queensland. He is the son of Wally Lewis, a former Australian rugby league football captain and sports presenter on Nine News Queensland. Lewis has two siblings, an older brother called Mitchell and a younger sister called Jamie-Lee. He attended St Anthony's Catholic Primary School in Alexandra Hills and Carmel Catholic College in Thornlands.
Lewis began acting at the age of thirteen. Lewis has since continued to appear in television shows such as H2O: Just Add Water, The Sleepover Club, Rescue: Special Ops and Mortified. In 2005 Lewis made his film debut in a bit role in the film Aquamarine. That same year Lewis starred in the low budget Australian Horror film Voodoo Lagoon as Aaron. The film starred John Noble , Natalie Blair and Erika Heynatz and followed a group of college students who take a deadly vacation to a remote exotic island.
In 2007, Lewis was cast in the Seven Network soap opera Home and Away as Geoff Campbell. Lewis made his debut on the series in June 2007 and it is considered his breakout role. In 2008, Lewis won the Most Popular New Male Talent award at the 2008 Logie Awards. In June 2009, Seven announced Lewis would be one of the eleven celebrity contestants in ninth series of Dancing with the Stars. Lewis was eliminated on the 23 of August 2009, finishing in fifth place in the competition.
In September of that year, Lewis announced he was leaving "Home and Away" to pursue other opportunities. Lewis made his final appearance on 12 February 2010. To date he has appeared in 567 episodes of the show.
Mid-September 2009 Lewis was cast in the Paramount Pictures Action Adventure film Tomorrow, When the War Began. The film, which is an adaptation of the novel series of the same name, began production a week after Lewis' departure from "[Home and Away]". Lewis portrayed the character Kevin Holmes and the film centres on a group of teenagers waging a guerrilla war against an invading foreign power in their fictional hometown of Wirrawee. The film was released in September 2010 to a mixed response from critics, but had large success with public audiences and went on to gross over $13 million in Australia alone. A sequel has been rumoured to be in the development stages and Lewis has expressed interest in returning.
Early 2010 Lewis starred in Nine Network drama "Rescue: Special Ops" playing Sam Marchello, son of Vince Marchello, played by veteran Australian actor Peter Phelps . Lewis also starred in the Independent Drama film 33 Postcards alongside Guy Pearce and Claudia Karvan. The film went on to be the biggest release of an Australian film in China to date, and receiving critical acclaim. Lewis also received the inaugural "Male Star of Tomorrow" Award at the 2011 Australian International Movie Convention on the Gold Coast. In July 2010, Lewis once again joined the Nine Network to star in Crime Drama television series Underbelly: Razor as Bruce Higgs. The role required Lewis to perform his first onscreen nudity scene.
In October 2010 it was announced that Lewis had been cast in the Australian ensemble Horror film Bait 3D. The film which also stars Xavier Samuel and Sharni Vinson required Lewis to return to his home state Queensland. The film follows a group of people trapped in a supermarket with a group of tiger sharks after a freak tsunami. In November 2010 Lewis was cast in a recurring role on the highly successful Foxtel Teen Drama television series SLiDE. Lewis portrayed the role of the temperamental older brother to Brenton Thwaites character Luke Gallagher.
In September 2011 Ten Network announced Lewis had signed on to a four-week stint on the Soap Opera Neighbours. Lewis played the role of Dominic Emmerson, a marine biologist. Lewis received praise for his stint on the series with the Herald Sun saying his performance "brings a wonderful lightness of touch to his Neighbours role". Ten reportedly offered Lewis a one-year deal with the series to continue his role as a regular but Lewis declined.
In November 2011 Lewis was cast in a regular role on the Nine Network Drama television series Tricky Business. The series centres on a family that runs a debt collection business. Lewis plays the role of the womanising Chad Henderson, who usually finds himself in comedic dilemmas when pursuing clients. Nine ordered a 13 episode first season with plans to extend the season depending on the audiences' reception. The series premiere aired on 14 May 2012 to 1.16 million viewers.
In March 2012, it was announced that Lewis had been cast in his first international high-profile role after travelling to the US for the 2012–2013 television pilot season. Lewis appeared in the M. Night Shyamalan film After Earth, which was released in May 2013 and starred Will Smith and Jaden Smith. The film followed a father and son who crash land and explore a planet.
Early during 2013 US Pilot season, Lewis was cast in ABC and Warner Bros. drama television pilot "Westside" directed by McG. The show revolves around the haves and have-nots of Venice, Los Angeles, and focuses on two rival families battling over the surfing soul of Venice in a classic story of Romeo and Juliet, also starring Jennifer Beals and Bruce Greenwood. "Westside" however was not picked up to go to series.
In January 2014, it was announced that Lewis had been cast in the third season of Channel 9's highly popular family drama House Husbands and would begin filming in late January. On March 3, 2014, Channel 9 announced that while filming "House Husbands" Lewis had also been cast and had begun filming the World War 1 epic mini series "Gallipoli", directed by Glendyn Ivin which aired in 2015.
|The Sleepover Club||2003||Extra||Various episodes|
|Just Add Water||2006||School friend||Various episodes|
|Mortified||2007||Andre and Talking Shoe Face||Two episodes|
|Home and Away||2007–10||Geoff Campbell||567 episodes|
|Saturday Disney||2008||Himself||One episode|
|Dancing with the Stars||2009||Himself, constestant||Season 9|
|Rescue: Special Ops||2010||Sam Marcello||Season 2|
|Event TV||2010||Himself, presenter|
|Talkin' 'bout Your Generation||2010||Himself, guest panelist|
|Underbelly: Razor||2011||Bruce Higgs||Season 4|
|Australia's Next Top Model||2011||Himself, Celebrity guest model||Season 7, Episode 8|
|Neighbours||2012||Dominic Emmerson||6 episodes|
|Tricky Business||2012||Chad Henderson||8 episodes|
|House Husbands||2014||Ned||Series 3|
|Hell's Kitchen Australia||2017||Himself, contestant|
|Tomorrow, When the War Began||2010||Kevin Holmes|
Awards and nominations
- Won: Most Popular New Male Talent (2008)