Irish comedian and actress known for her award-winning stand-up routines. In 2018, she began starring in NBC's I Feel Bad. She's also been in shows such as Trollied, The Delivery Man, and The Fall.
She attended Trinity College, where she received a degree in French and Philosophy. She made her onscreen debut in 2009.
In 2012, she became the second woman to ever win the So You Think You're Funny award. She uses the surnamed "Bea" to honor her late father.
She was born to Brian and Helen O'Sullivan and has a sister named Sinead.
She's appeared on QI with Stephen Fry.