Some children rebel against their parents.

Glenda inherited the family business.

Introduced in Seed of Chucky, Glenda is one of the two distinct souls connected to the child of Chucky and Tiffany, sharing a single doll body with their gentler counterpart, Glen. Where Glen recoils from the family's enthusiasm for murder, Glenda arrives with considerably fewer objections to chaos, violence, and the general parental philosophy of America's most homicidal dolls.

Basically...

The resemblance is unfortunate.

And unmistakable.

What makes Glenda more interesting than simply being the “bad one” is how the larger Chucky story eventually expands their identity. In the television series, Glen and Glenda are presented as separate nonbinary twins, giving each of them room to exist as an individual rather than treating Glenda as merely a switch somebody flips inside Glen. Glenda remains the bolder, more aggressive, more openly chaotic sibling, but also develops loyalties and choices that belong specifically to them.

That's important.

Because in a franchise filled with possessed dolls, split souls, body-swapping, murder, and Jennifer Tilly playing increasingly complicated variations of Jennifer Tilly...

Identity gets weird.

Eventually Glen and Glenda reunite within their original doll body and choose the combined name GG, but that later identity doesn't erase Glenda's individual story.

Fans love Glenda because they bring a wonderfully dangerous energy to the Chucky family tree: confident, unpredictable, stylish, and considerably more comfortable with the family legacy than poor Glen ever was.

Turns out the murderous doll couple's child really did inherit something from Mom and Dad.

Probably not what the pediatrician meant.