Eion is known for his performances in the Emmy and Golden Globe winning HBO miniseries Band of Brothers, character roles in "Fight Club" , "Almost Famous", "Center Stage" and leading man opposite Antonio Banderas in HBOs "And Starring Pancho Villa as Himself". Eion was nominated for a Golden Satellite award and hailed by critics for a "beautifully understated performance that brings a striking balance to the piece". The movie's legendary writer-producer Larry Gelbart of M.A.S.H. fame was quoted in Variety as saying " I see Eion as a reincarnation of Henry Fonda. He's physically attractive and exudes an effortless sincerity, he has the whole actors ball of wax". In September 2003, Variety Magazine honored Bailey as one of the top ten emerging actors to watch. He has appeared in Showtime's original movie, "Sexual Life", where he was voted the prestigious 'breakthrough performance of the year award' by audience members of The Phoenix International Film Festival after only twenty minutes of screen time. Eion joined the cast of ER for half a season, and was recognized by People Magazine as one of the Fifty Most Eligible Bachelors of 2005 and US magazine named Eion and his cast mate Maura Tierney as one of the sexiest couples on television. Eion has since starred opposite Ellen Pompeo in the television movie "Life of the Party", for which he was awarded his first Emmy for 'Outstanding Performance in a 'Youth or Family Special'. On stage, Eion has appeared in numerous plays, most notably as Alan Strang in the psychological masterpiece "Equus" at the Pasadena Playhouse. In this daring role that requires an on stage mental breakdown and prolonged full nudity, critics once again found Eion's performance to be remarkable. Variety called him "excellent as Strang" Hollywood Reporter "expert" and Drama Logue noted that "his performance moves to a profoundly moving crescendo by plays end". More recently his turn as as Steve Knight on Showtimes "Ray Donovan" attracted attention along with an international fan following for his multi-year recurring role on ABC's "Once Upon A Time". In 2017 Eion is shooting "The Last Tycoon" for Amazon and his starring turn in the nautical-drama "Extortion" with Academy award nominee Barkhad Abdi and Danny Glover will be released by Lionsgate May 16th.