Grant Rosenmeyer is an American actor. He is also a screenwriter. He first performed in the Broadway production of Les Misérables. In 2001, he made his cinematic debut as Ari Tenenbaum in Wes Anderson’s The Royal Tenenbaums. He later became further known for playing the titular role in the Fox sitcom Oliver Beene. Afterward, Rosenmeyer made guest appearances in such TV shows as Monk, Jonny Zero, Blue Bloods and Crazy Ex-Girlfriend. In 2009, he wrote the short film Fugue, which won at the Connecticut Film Festival. Later in 2016, he had a role in the movie Money Monster. His next roles were in the films Temps and Chasing Blues.