Maria Alexandra Giovanni was born in London, England to Italian parents. After a calm, easy childhood with doting parents, Maria entered Starfleet Academy at the age of 18. She worked hard during her years there and graduated with honors in engineering when she was 22.

She was first stationed on the Reliant as an ensign immediately afterward. Young Giovanni stayed on the Reliant until she had attained the rank of lieutenant, a little over four years later. While on the Reliant, Maria met, fell in love with, and married Paul Thomas, a fellow engineer. The two had a seven year marriage producing twins, Katarina Kristin and Andrew Scott, now four. Giovanni and Thomas divorced two years ago, and the twins live with their mother.

After leaving her first post, Giovanni was re-posted on the McKinley. She served the ship well as assistant to the chief engineer. It was while on the McKinley that Maria gave birth to the twins. Not long after the birth of the twins the McKinley was involved in a battle with a renegade Romulan ship. During the battle the engineering section was hit and many people were killed, including the chief. Maria's quick thinking, sharp leadership and action prevented a warp core breach and saved the ship. This earned her a promotion to the rank of Lt. Commander and the position of Chief Engineer.

Maria's promotion and position was the beginning of the end for her and her husband. He grew jealous of her, and it quickly came between them. This eventually broke up the marriage. Commander Giovanni served as Chief Engineer on the McKinley for four years before her leadership and abilities earned her a recent promotion to Commander and a transfer to the command ranks.

Despite her decidedly classic Italian features (large dark eyes; thick, shoulder-length, chocolate brown hair) Maria has a soft English accent, and quiet mannerisms. She has a very calm demeanor on duty, always thinking before she speaks, and acutely aware of her current surroundings and many possible solutions for any problem. While she can be "uptight" while on duty, Maria is very relaxed and easy-going in her off hours. She has always been very popular among her peers, and loves meeting new people.

Commander Giovanni is fiercely devoted to her children, and would protect them no matter the cost. In her spare time, the Commander enjoys many activities including white-water rafting, pool, reading, and especially romping with the twins on the holodeck.