Karen was previously shown to be very oblivious, dimwitted, loud, and very obnoxious, which was present in how she always annoyed her husband, Brooklyn T. Guy. Karen was also extremely whiny and childish as she complained about her mask in "Home Alone 2".
However, in recent videos, Karen appears to be a lot smarter, and well-mannered compared to Brooklyn Guy, as she has been shown to be frustrated at his obsession with the Miami Heat. She has also shown to actually try and support Brooklyn Guy whenever she can, and becomes the responsible one at times, like in "Brooklyn Guy's Depression!," where she tries to hold the house together while Brooklyn Guy is depressed over Jimmy Butler.
Karen was also mentioned to be good at making clothes as in "Bowser Junior's Christmas Eve!", she made Simmons an Elf costume to rob Junior's apartment.
She has a strong New York accent, pronouncing "Bernie" as "Boiny" (despite that actually not being Brooklyn T. Guy's name).
Speaking style
Speaks with a thick New York accent, brisk yet affectionate, often interrupting with practical advice and occasional sarcasm
