Grandma Cramp looks like Dorothy Cramp with Yellow skin and same shaped hair.
She is nice cool but sometimes she can be stubborn and ruling in the household telling Mrs. Cramp what to do.
She first appears in her debut episode "Grandma's Piano" where she comes to stay for the weekend.
She then reappears in "Grandma Dearest" when the boys go to stay with her but she thinks there is werewovles in her home but it is actually just grandad, it is also reveled in that episode that she wears a wig.
Season 1: Grandma's Piano (Debut)
Season 3:Cramp vs Cramp
Season 4: Grandma Dearest