Complex sentence: Originally before the show opened on Broadway, actor Will Swenson performed the role of Jaxx, until Swenson was offered the lead comedic role of Berger, in the revival Broadway Production of HAIR.
Split into simpler sentences: Originally Before the show opened on broadway, actor Will Swenson performed the role of Jaxx. Until he was offered the lead comedic role of Berger, in the revival Broadway Production of HAIR.