Graham David Phillips (born April 14, 1993) is an American actor, filmmaker and singer. Beginning his acting career at the age of nine, Phillips is known for a variety of television, film, and stage roles; as Zach Florrick on the CBS series The Good Wife, Ben Tennyson in the film Ben 10: Race Against Time, and Evan Goldman in the Broadway musical 13, as well as a leading role in the independent film Staten Island Summer. He has also appeared in films such as Blockers and XOXO and in the recurring television roles of Nick St. Clair in Riverdale and Nate in Atypical. He made his feature film directorial debut in 2019 with The Bygone.

Personal life
Phillips was born on April 14, 1993, in Orange County, California. His father is Layn R. Phillips, an attorney and former U.S. district court judge. He was raised Episcopalian, and during his K-12 school years, attended St. Margaret's Episcopal School in San Juan Capistrano, California. He dated singer Ariana Grande from 2008 to 2011.

Phillips entered Princeton University in the fall of 2012, majoring in history while maintaining his acting career. His undergraduate thesis was on indigenous marginalization and resistance in the U.S. He graduated in 2017.