Spouse: Marvin Finster
Age: 55 and a half (2 weeks older than Marvin)
First Seen: Family Tree
Shirley is Chas's mother and Chuckie's grandmother. She is married to Marvin. She is an avid fan of cooking, as she is usually seen wearing an apron. It can be seen that while Marvin is considered the disciplinary one of their family, she can be seen as the gentle one. As she enjoys being loving to Chas as a child, while Marvin wanted to make sure he'd still be a tough one ready for life. While they love Chas and their grandson Chuckie, they both regret never having more children to love and spoil.