Kerry Condon (born January 9, 1983) is an Irish actress. She was the youngest actress to play Ophelia in a Royal Shakespeare Company production of Hamlet (2001–2002). She played Octavia of the Julii in Rome (2005–2007), Stacey Ehrmantraut in Better Call Saul (2015–2022), and was the voice of the artificial intelligence entity F.R.I.D.A.Y. in various films in the Marvel Cinematic Universe.