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KATIE CLAIRE MCGRATH is a professional actress/singer based in NYC. She is the daughter of actors Toni DiBuono and Michael McGrath. Katie has been featured on renowned programs as LAW & ORDER: SVU and FBI: ORIGINAL.


Theatrically, she has performed internationally on Disney Cruise Line and throughout the US in productions such as BE MORE CHILL (Brooke) The Strand Theatre, LEGALLY BLONDE (Elle Woods) UCPAC, and DISNEY’S NEWSIES (Katherine Plumber) Bill Hanney’s Theatre by the Sea.


Katie can be seen as Daisy in the feature film INSIDE THE RAIN (2019 Big Apple Film Festival, Best Picture: Winner) and most recently starred as Sophie Sheridan in MAMMA MIA!, RCCL.

Katie is a member of SAG-AFTRA and AEA.

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