Act IV or Act Four may refer to: Act IV, music venue Music of Washington, D.C. Act Four (The Seldom Scene album) Act IV: Rebirth in Reprise, a 2015 album by the Dear Hunter Act. 4 Cait Sith, 2018 single album by Gugudan Tusk Act 4, a Stand of Johnny Joestar, the protagonist of Part 7 of the Japanese manga series JoJo's Bizarre Adventure