
Acting
Matthew Louis Shear is an American actor known for his work in independent film and frequent collaborations with director Noah Baumbach. He began his career with a small role in Taking Woodstock (2009) and appeared in Mistress America (2015), The Meyerowitz Stories (New and Selected) (2017), and Marriage Story (2019), and played Lucius Isaacson on The Alienist (2018–2020). In 2025, he made his directorial debut with Fantasy Life, which he also wrote and starred in.

Fantasy Life
as Sam

Between the Temples
as Nat

Old
as Sidney

Marriage Story
as Terry - Theater Actor

Cubby
as Lars

Treasure Trouble
as Jake

The Boy Downstairs
as Ben

The Meyerowitz Stories (New and Selected)
as Gabe

While We're Young
as Benny

Mistress America
as Tony
While We're Young
2015