Calvin's Mom
Calvin's Mom is one of the tritagonists of Calvin and Hobbes. Mom is a stay-at-home parent who is frequently exasperated and troubled by Calvin's antics. It's been said that she used to work, but her job was incredibly stressful. Calvin's mother was used to it, so she was the one best-suited to stay home and deal with Calvin. (However, Calvin's father is the person who said this, and he may have been joking.) It has been said that Calvin's mom is actually a drawing of Melissa Watterson.
On the rare occasions when Mom is not reacting to her son's misbehavior, she seems to enjoy quiet activities, such as gardening and reading, although it is almost always disturbed or interrupted by Calvin. The "daily disciplinarian", Calvin's mother is frequently the one forced to curb Calvin's destructive tendencies; once, she allowed Calvin to smoke a cigarette in order to teach him how unpleasant smoking can be. Calvin's mother also usually seems sympathetic towards her son's relationship with Hobbes, and a few times has found herself speaking to Hobbes as well (although she refers to one instance as "talking to a stuffed animal"). She has a serious trouble getting Calvin organized when Rosalyn is about to come for babysitting. Calvin's mother also sometimes seems to have problems getting Calvin to go to school.