John Gallagher, Jr. is an American actor and musician. He appeared in the 2011 Broadway production of Jerusalem and the 2016 Broadway revival of Long Day's Journey Into Night. His film credits include 10 Cloverfield Lane, Underwater, and Which Brings Me to You. Gallagher, Jr. has also appeared in the television series The Newsroom and Modern Love alongside Anne Hathaway. He starred in the film Abandoned and has released the singles Wurlitzer In Space, Goodbye or Something, and Lost Love.