X Mayo (/ˈɛks ˈmaɪoʊ/EX MY-oh) is an American comedian, writer, producer, and actress. She was a staff writer for The Daily Show. Mayo has acted in the series Strangers, The Good Doctor, and Swarm, and the films The Farewell and The Blackening. She was a main cast member on American Auto (2021–2023).

Mayo was born and raised in Inglewood, Los Angeles.^[1] She is Afro-Latina.^[2] She trained in dance, writing, and acting while growing up.^[2] After attending college, she dropped out and began training as a makeup artist. She moved to New York City to work in the makeup industry and went on to study improvisational comedy at Upright Citizens Brigade.^[3][4]

Mayo produced and starred in the sketch comedy web series Who Made the Potato Salad, which co-starred other comedians of color.^[1] In 2019 she worked with Shenovia Large to host the comedy show "Unsung Heroes Of...", which was recommended by Time Out New York.^[5]

Her first professional comedy writing job was as a staff writer on The Daily Show from 2018-2021.^[1][6] She was nominated for a Primetime Emmy Award for Outstanding Writing for a Variety Series for her work.^[7]

Mayo was a recurring cast member on the Facebook Live series Strangers.^[7] She was also a supporting character in the films Finding 'Ohana and The Farewell.^[7] In 2022, Mayo co-starred in the film The Blackening. She had a supporting role in the Amazon series Swarm.^[8]

She was a main cast member on the NBC series American Auto, which ran for two seasons (2021-2023).^[4] In October 2023 it was reported that Mayo was being considered as a host for After Midnight, the series that would take over the timeslot held by The Late Late Show with James Corden after Corden's departure, although the role was ultimately granted to Taylor Tomlinson.^[9][10]

In 2023, she joined the cast of the movie The Treasure of Foggy Mountain, playing park ranger Taylor, alongside Megan Stalter.^[11][12]

• 2020 – Nominee, Primetime Emmy Award for Outstanding Writing for a Variety Series (for The Daily Show)^[7]