'The Fault in Our Stars' Movie: Brenton Thwaites, Nat Wolff, Nick Robinson Could Be Your Augustus

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Now that Shailene Woodley has been cast as the lead in the adaptation of John Green's bestselling young adult novel The Fault In Our Stars, the hunt is on to find her leading man. Woodley plays Hazel, a teenage cancer patient who meets a fellow sufferer in a cancer support group. Agustus is a videogame-loving ex-basketball player who lost his leg to osteosarcoma, and a complete dreamboat. The five young actors testing for the role aren't very famous, so we've rounded up their most well-known credits for you to figure out where you've seen them before.
If you're not hip to TFIOS, get on it. Time voted it the No. 1 book of 2012 — not YA book, all books. Stock up on tissues before you read. And if you are, here are the five young actors testing for Augustus this weekend, per Variety:
Brenton Thwaites, 24
Did you catch Lifetime's 2012 remake of the classic erotic teenage coming-of-age story The Blue Lagoon, Blue Lagoon: The Awakening? If not, then you probably haven't seen this Australian cutie unless you hail from his homeland, where he starred on the long-running soap Home and Away. But you will see him when he plays the Young Prince in the Angelina Jolie-starring fairy tale epic Maleficent, out next year.
Nat Wolff, 18
This star of the long-running Nickelodeon series The Naked Brothers Band played one of the titular bros (along with his real-life sibling, Alex). He appeared in the star-studded New Year's Eve, and plays one of the leads in Palo Alto, the dark drama based on James Franco's short stories.
Nick Robinson, 18
Robinson can currently be seen as Ryder Scanlon, the nephew of Melissa Joan Hart in ABC Family's sitcom Melissa & Joey. On the opposite end of the acting spectrum, he also appeared in an episode of Boardwalk Empire and a few smaller films.
Noah Silver
The Internet doesn't have much on this young actor, who we're assuming is French or French-Canadian (due to the multiple French-language credits on his IMDb page. He has three films set for release in the next year, though, including Jamie Marks Is Dead alongside Judy Greer and Liv Tyler and The Last Nights alongside Morgan Freeman and Clive Owen. You can also catch him in three episodes of Showtime's The Borgias.
Ansel Elgort
Elgort's already got the advantage of working with his potential costar, Woodley, as her brother in the actress' other high-profile adaptation, Divergent. The stage actor makes his film debut in the new remake of Carrie, starring Chloe Moretz and Julianne Moore.