Theresa Peters is one of the most powerful women in Hollywood. In 2008 she joined UTA as a partner, and has since acquired a whopping 59 clients. Peters began her career in the William Morris mailroom, like so many before her, where she told the Hollywood Reporter she, “Learn[ed] more in three months than you would in three years running around this town.”
She was able to see the whole process of selling a show when she was assigned as an agent’s assistant , and then she rapidly moved her way up until becoming a partner and the head of the talent department at UTA. Her most notable clients include Ewan McGregor and Kirsten Dunst.
FYI. This information is two years old, at that time she was considered the 14th most influential agent is Hollywood. From the richest.com