She has been featured on hit television shows like Glee, The Shield, My Name is Earl and starred in popular musicals  like the ABBA hit Mamma Mia! on Broadway as the sassy, fun bestie, "Lisa" and the funky, far out musical "Hair"(Dionne cover/Ensemble).Regional theaters include: Marriott Lincolnshire, Drury Lane Oakbrook, Steppenwolf Chicago, Great Lakes Theatre Festival as well as historical theaters all over the U.S,Canada, and Europe.

One of her favorite roles gave her the pleasure of being immortalized in cartoon form as the sweet, fun-loving Eleanor dancing in the movie Alvin and the Chipmunks 2: The Squeakquel. She is constantly humbled and amazed by where her career has taken her.  

Thomasina enjoys being a world traveler, an avid reader, hiking, kickboxing, and cracking her friends up with her shimmy shake and boisterous laugh.


Thomasina is fortunate to have been a passionate participant in the Arts her entire life. From an early age, the Chicago native has appeared in national commercials, television, voice overs, print ads and theater. She attended The Chicago Academy for the Arts and Baldwin Wallace University with honors, all while working as a professional card carrying member of of SAG-AFTRA and AEA. 



​Thomasina Gross