Mary Jo Gruber was born in Columbus, Georgia. She moved to Headland, Alabama and then settled in Fort Walton Beach, Florida at the age of 6. Mary Jo was active in community theatre throughout her school years. She moved to Los Angeles at the age of 19. At 5 ft. tall and 85 lbs. Mary Jo's friends lovingly refer to her as being "fun-sized." Mary Jo's first film role was the independent film Chatterbox when she was in the 11th grade. Upon arriving in Los Angeles she has appeared in 90210 and has co-starred in the feature film Hardflip. Mary Jo has worked as a host on the ActorsE Chat show and at Red Carpet events. She has worked as a live streaming editor on ActorsE and works as an Assistant Editor on various other projects. Mary Jo's parents live in Fort Walton Beach, Florida where her father is in marketing and her mother is a school teacher. She has one older brother who is a US Navy diver.