Doumit was born and raised in Australia with her mother Mary Zavaglia and father Morrie Doumit, and an older brother James. She previously worked with showrunner Eric Kripke on the show Timeless.
She is of Lebanese, Italian and Australian descent.
Doumit has studied at the Actors College of Theatre and Television (ACTT) and The Actors Centre Australia. She graduated from the National Institute of Dramatic Art (NIDA) in Kensington, Australia and she also took a two-year intensive program with the Stella Adler Academy of Acting in Los Angeles.
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