Erin McGathy was born on a US Naval Base in Yokosuka, Japan. She spent her childhood on military bases around the world until her family settled in San Diego at age 13. Her father progressive is a Baptist Preacher.
She is an actress and writer, known for Apocalypse Clown (2023), Community (2015), Drunk History (2015), Harmonquest (2019), A Royal Corgi Christmas (2022), Harmontown (2015). She lives in Dublin, Ireland.
On December 28, 2013 became engaged to boyfriend Dan Harmon on the shores of Loch Ness.
McGathy hosts the podcast 'This Feels Terrible', a podcast about love and relationships; as well as 'Human Conversation, a podcast co-hosted with comedian Wayne Federman.