With a background in experimental art and fashion, O’Sullivan’s Costume Designs are marked by her ability to mix realism with progressive impact. Selected to show her debut collection at Iceland’s fashion week, O’Sullivan kicked off a career in New York—designing her own line,as well as styling for iconic brands like Lola Ehrlich, and performers like renowned ‘BOX NYC’ drag artist Rosewood.


O’Sullivan’s first foray into film was for the 2008 Academy Award-nominated feature, Frozen River. Since then, her versatile designs have appeared in a diverse range of projects including:


The Map of Tiny Perfect Things & Gifted; FilmNation Entertainment

Mississippi Grind & Equals ; A24

Captive State; DreamWorks / Focus Features

Sinister; Blumhouse 

Out of Blue; BBC Films

Keanu & Search Party; Universal & New Line Cinema