Mitzi Shortman is a fictional character in the Hey Arnold! TV Series.
Born in 1917, she is Grandpa's fraternal twin sister. Mitzi's older than Phil by 6 minutes. Their grandfather died in 1921. Phil and Mitzi stopped talking to each other when their pet dog Pooter died after being hit by a milk truck in 1927. However, Phil and she eventually reunite and Arnold puts a wonderful photo album of all three of them together.
Mitzi's only appearance was in the episode "Grandpa's Sister".
On August 20th 2012, Mitzi's voice actress Phyllis Diller passed away after a string of health problems.
- 76a. Grandpa's Sister
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