Career: Jackman's first TV appearance was in Australian show Law of the Land. He then appeared in several more series before making his movie debut in 1999's Paperback Hero. He took over the role of Wolverine in 2000's X-Men after Dougray Scott dropped out, and has been a star ever since. He's played the character several more times since, but admits he will soon be too old for the role. Other movies include Van Helsing, Swordfish, The Prestige, The Fountain and Australia. Jackman has also maintained a musical theatre career, gaining acclaim for his roles in Oklahoma at London's National Theatre and on Broadway in The Boy from Oz. More recently he's appeared in sci-fi movie Real Steel, the Oscar-winning Les Miserables and drama Prisoners.

Career: At 15, Williams became emancipated from her parents so that she could avoid America's child labour laws. She also moved to Los Angeles, and her big break came when she landed the role of Jen Lindley in teen drama Dawson's Creek. The popular series ran for six seasons, clocking up 128 episodes. During her time on the teen drama, she also starred on the big screen in Halloween H20: 20 Years Later (1998), Dick (1999) and Prozac Nation (2001). She went on to receive an Academy Award nomination for Brokeback Mountain (2005); while filming she fell in love with co-star Heath Ledger, with whom she had a daughter. They had separated by the time of his death in 2008. Williams has received two further Academy Award nominations for Blue Valentine (2010) and My Week with Marilyn (2011). Her other film credits have included The Station Agen (2003), Synecdoche, New York (2008), Shutter Island (2010), Take This Waltz (2011) and Oz the Great and Powerful (2013).

Career: Efron's early credits include guest roles in ER, The Guardian and CSI: Miami. He had a recurring role in the drama Summerland. His big break came in 2006 when he played Troy Bolton in the Disney TV movie High School Musical. In the same year, he was cast in Hairspray (2007). High School Musical 2 followed in 2007 and it attracted more than 17.2 million viewers on its first showing in America. A year later, Efron played the lead role in Me and Orson Welles. Efron reprised his role in High School Musical 3: Senior Year, which was released in cinemas in 2008. Since then, he has focused on films and starred in 17 Again (2009), New Year's Eve (2011), The Paperboy (2012) and Neighbours (2014).