Gwendolyn Hertzfeld-Mastroantonio

Gwendolyn Hertzfeld-Mastroantonio is one of the principals in the Springfield School District.
==Appearances==
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Category:Black-Haired Characters
Category:Adults
Category:Characters
Category:Female characters
Category:Alive characters
Category:Season 26 first appearances
Category:Principals
Category:Non-speaking characters
Category:American Characters
Category:Citizens of Springfield
Category:One-Time Characters