Grand-mama (her real name being Tanya) is Dick's mother and Irwin's paternal grandmother. She usually ends sentences with "baby", as Irwin does with "yo" and his father with "dude", which seems to be suggesting a family trait. She is also Dracula's wife. Despite her angry demeanor, she seems to care for Irwin, but will sometimes embarrass him. She doesn't like to be challenged or insulted, and has a hatred of hip hop music. She seems to have grown up in the dozens, as she has a mastery of "yo mama" jokes. In Dracula Must Die, it is revealed that when she was young, Tanya was a very lovely young woman who could really kick-butt with karate and that she married Dracula because he was a great dancer despite him being a blood-sucking vampire.

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