Career: Neeson's professional debut was on stage in The Risen People. He was spotted in a play at Dublin's Abbey Theatre by director John Boorman, who cast him in movie Excalibur in 1981. He made a name for himself in Krull, A Woman of Substance, Ellis Island and The Mission. Other leading roles came in Suspect, The Dead Pool and The Big Man. However, he didn't become a major star until Schindler's List in 1993. Since then he's featured in Star Wars: Episode One - The Phantom Menace, Gangs of New York, Love Actually, Kinsey and the brilliant action film Taken. He was also seen in the big-screen version of The A Team and has several blockbusters in the pipeline.

Career: Walsh was a model in Japan during the 1980s where she also taught English to Japanese students. She moved to Chicago and worked with the Piven Theatre Workshop. After playing Cathy Buxton in the 'Stakeout' episode of Homicide: Life on the Street in 1996, her first major television appearance was in 1997, when she appeared on The Drew Carey Show as Carey's character's girlfriend Nicki. She wore a fatsuit in some episodes of the show, as the Nicki character was a formerly obese woman who lost weight and slowly started to gain it back. She went on to portray Carol Nelson in HBO's The Mind of the Married Man TV series, and played Norm Macdonald's romantic interest in the sitcom The Norm Show. Walsh also made a notable guest appearance on CSI: Crime Scene Investigation as Mimosa, a transsexual. She sometimes appeared in sketches on Late Night with Conan O'Brien. She had a recurring role on Karen Sisco as Detective Marley Novak in 2003 and 2004. In 2005, she was cast in the ABC series, Grey's Anatomy, as Dr Addison Montgomery, the estranged spouse of Derek Shepherd, before landing the lead role in the spin-off, Private Practice.

Career: Courtney's early roles included guest spots in Australian TV series All Saints and Packed to the Rafters. His big break came in 2010, when he played Varro in sword-and-sandal drama Spartacus: Blood and Sand. Since then, he has largely worked on big-screen projects. His film credits include Jack Reacher (2012), A Good Day to Die Hard (2013), I, Frankenstein (2014), Felony (2014) and Divergent (2014).

Career: Donovan's early acting career saw him switching from the stage to the screen. On TV, he has made guest appearances in Another World, Homicide: Life on the Street, Millennium, and Spin City. He had a recurring role in Touching Evil. His film credits include Sleepers (1996), Bait (2000), Book of Shadows: Blair Witch 2 (2000), Hitch (2005), Changeling (2008) and J Edgar (2011). His big break came in 2007 when he began playing the lead role in TV action drama Burn Notice. It ran for seven seasons until 2013.