Jason Morgan Ritter (born February 17, 1980) is an American actor, and the son of actress Nancy Morgan and late actor John Ritter, known for his roles as Kevin Girardi in the television series Joan of Arcadia, as Sean Walker in the NBC series The Event, and as the voice of Dipper Pines in Gravity Falls. He also played the recurring role of Mark Cyr in the NBC television series Parenthood, for which he received an Emmy Award nomination.

Early life

Ritter was born on February 17, 1980 in Los Angeles, California, the son of Nancy Morgan and John Ritter (1948-2003), and the grandson of musician/actor, Tex Ritter and Dorothy Fay. His stepmother is actress Amy Yasbeck. He has three siblings, including actor Tyler Ritter.

Ritter first appeared in the opening credits of his father's show, Three's Company.

He attended middle and high school at the Crossroads School in Santa Monica, California, with Simon Helberg, who became his roommate at NYU. He then attended and graduated from New York University's Tisch School of the Arts, where he studied at the Atlantic Theater Company. He also studied at the Royal Academy of Dramatic Art in London, UK.