Olga Georgina Hnidey Martínez (born March 7th, 1962) is a Mexican voice actor, teacher and director, awarded in the Chamizal National Memorial Festival in 1985 as the Best Actress.
She usually voices characteristical characters, like old women or adult women. Some of her best known roles include Blackarachnia in "Transformers: Beast Wars", Miriam Pataki from "Hey Arnold!", Mrs. Weebles from "What's With Andy?", Maude Flanders from "The Simpsons", and Professor Poofenplotz from "Phineas and Ferb".