E.R. Fightmaster, the talented non-binary actor, writer, and musician, has gained significant attention for their work in Grey’s Anatomy and Shrill.
However, beyond their rising career, fans are equally curious about their personal life—specifically, their dating history and current relationship status.
Unlike some celebrities who openly share details about their romantic relationships, Fightmaster has remained relatively private.
Over the years, rumors have circulated about who they might be dating.
The biggest speculation involves two names: Caterina Scorsone, their Grey’s Anatomy co-star, and Kz Elizabeth, their bandmate from the rock duo Twin.
Are E.R. Fightmaster and Caterina Scorsone Dating?
The most recent speculation surrounding E.R. Fightmaster’s love life involves Caterina Scorsone, a Canadian-American actress best known for playing Dr. Amelia Shepherd on Grey’s Anatomy.
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Fans began suspecting a romantic connection between the two after noticing their on-screen chemistry and close off-screen friendship.

Although neither Fightmaster nor Scorsone has publicly confirmed a romantic relationship, their frequent appearances together and warm interactions have fueled ongoing rumors.
Scorsone, who was previously married to Rob Giles, has not openly addressed the dating speculation, and Fightmaster has also remained silent on the topic.
Without official confirmation, their relationship status remains unclear, leaving fans to wonder if their bond is purely platonic or something more.
E.R. Fightmaster’s Alleged Relationship with Kz Elizabeth
Before rumors of a relationship with Scorsone emerged, E.R. Fightmaster was linked to Kz Elizabeth, their bandmate in the garage rock duo Twin.
The two have worked closely together on music projects, and their connection has led many to believe they were in a romantic relationship.
While Fightmaster and Elizabeth have not publicly discussed the nature of their relationship, reports suggest that they may still be together.
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Some fans believe that Fightmaster’s rumored romance with Scorsone is nothing more than speculation and that they are still with Elizabeth.
Career Highlights
- Comedy and Improv Background: Fightmaster was a former member of The Second City’s touring company and performed with Boom Chicago in Amsterdam.
- Writing and Production: In 2020, they joined CBS’s creative team for the studio’s Diversity Sketch Comedy Showcase.
- Television Career:
- Played a recurring role on Hulu’s Shrill (2021).
- Became the first non-binary doctor in Grey’s Anatomy as Dr. Kai Bartley.