Bunny Mather is a resident of Nantucket and the wife of Lowell Mather. She is highly promiscuous, sleeping around and having sex with numerous men. She has also made passes to Joe Hackett and Brian Hackett. She may have had cosmetic surgery at one time, contributing her looks to a Dr. Parker.

Bunny and Lowell have several children and live on a houseboat. Although she loves her children, she is not satisfied with staying on the boat and often goes out looking for male companionship beyond Lowell. As a result, Lowell gets extremely jealous, and they eventually get divorced. After the divorce becomes final, she has sex with Antonio Scarpacci in his cab.

She was played by actress Laura Innes.