In 2017, just after graduating from the Yale School of Drama, Canfield auditioned for the role of WIlla Ferreyra in the
HBO comedy-drama Succession. She was instead cast as Jess Jordan,
Kendall Roy's executive assistant, in a recurring co-starring role. From the
third season onward, Canfield was promoted to a
guest starring role with her character playing a larger role with more screen time. Canfield's role as Jordan was highlighted by
The Ringer critic Jessica MacLeish who called her "one of the most compelling
Succession characters". Canfield played the role of Christina in the 2019 revival of
Maria Irene Fornes's play
Fefu and Her Friends at the
Theatre for a New Audience in Brooklyn. In 2021, Canfield starred as
Beth DeVille, the girlfriend of lead character Yorick Brown, the only male survivor of a virus that wipes out all others with a Y-chromosome, on the
FX comic-book adaptation
Y: The Last Man. In 2022, Canfield portrayed an NYPD detective, Janine Harris, in the crime drama
The Calling. In 2024, she made her Broadway debut as Holly in
Stereophonic. She was nominated for a
Tony for Best Featured Actress in a Play. == Personal life ==