Grandma Gertie is Arnold Shortman's paternal grandmother, Grandpa Phil's wife, Miles Shortman's mother, and Stella Shortman's mother-in-law. This article is a stub. You can help Fictional Characters Wiki by expanding it. Retrieved from "https://characters.fandom.com/wiki/Grandma_Gertie?oldid=164326" Categories: Hey Arnold! characters Grandmothers Characters voiced by Tress MacNeille Gray hair Characters with glasses Article stubs Nickelodeon characters 1990s Characters 1994 Characters Debuts Grandparents Mentally ill Characters with mental illness Cartoon Heroes Heroic Disciplinarians Old characters Elderly characters Wise characters TV Show Heroes Optimists Tv Show Characters Heroic Jerks Fighters Martial artist Females Nurturers Voice of Reason Community content is available under CC-BY-SA unless otherwise noted.