Marsha Thomason
 (Nessa Holt)

Nothing gets past the watchful eyes of the "Ice Queen," also known as pit boss Nessa Holt, played by British actress Marsha Thomason on NBC's new series Las Vegas.
Beginning her acting career at age 12 when she joined the Oldham Theatre Workshop, Thomason turned a hobby into a successful acting career, landing a procession of roles in a number of British television series including the BBC's Burn It, Brazen Hussies with Julie Walters, Pie in the Sky and Playing the field. She also starred in ITV's popular series Where the Heart Is, as well as the network's Prime Suspect 5, alongside Helen Mirren. Thomason went on to make her professional stage debut at London's renowned Royal Court Theatre as the lead in Breath Boom.
Making her American feature film debut starring alongside Martin Lawrence in Black Night, Thomason's other credits include Long Time Dead and the independent film Pure, opposite Keira Knightley. Her projects include My Baby's Mama," with Eddie Griffin and Haunted Mansion opposite Eddie Murphy.
Thomason resides in London and Los Angeles. Her birthday is January 19.