Grey's Anatomy Marika Dominczyk

Grey's Anatomy: Marika Dominczyk Cast in Mysterious Season 13 Role

She’s Owen’s sister. Or Arizona’s new love interest. Or just a patient.

Actually, all we know for sure is that Marika Dominczyk — the actress-wife of Scandal star Scott Foley — has booked a guest stint on Grey’s Anatomy.

ABC confirmed Dominczyk’s casting, but declined to specify how many episodes she’ll be around for or who she will be playing. They did, however, reveal her character’s name: Eliza Minnick (which means she’s definitely not Owen’s sister, whose name — as reader Michelle reminds us below — is Megan.)

Her previous credits include a recurring role on Brothers & Sisters and guest gigs on Criminal Minds and House.