Theresa Laib was born in Glendale, California. Her mother, from China, is a global-logistics accountant and her father, French, Irish, Italian descent, is a Lecturer at the University of Southern California.

Theresa entered the world of professional acting in 2014 when she was cast, in the feature-length horror film, Havenhurst, as the daughter of the lead character, played by Julie Benz. On the set, Ms. Benz graciously gave Theresa acting tips between takes. Theresa was thrilled to work with real Hollywood actors and behind-the-scenes film-makers including Director, Andrew C. Erin.

Theresa Laib has also appeared in an episode of Haunted Hathaways, and had a principal role in Wet Paint, a short film directed by Yi Cheng. She was cast in the feature-length film, Imaginary Order, released in 2019.