She is rumored to have a biological sister margie who looks much like her,.

Does Melissa Mccarthy Have A Sister?
Melissa and margie are the only children of parents, sandra and michael mccarthy. The actress's family lived a relatively simple life on a farm in a small town outside of chicago. While melissa mccarthy became a household name for playing a bridesmaid in kristen wiigs 2011 comedy bridesmaids, she will reportedly not be involved in her cousin.