Ruthie Cohen

From Encyc

Ruthie Cohen was a minor character in the television series Seinfeld. She was played by Ruth Cohen.

She was a middle-aged cashier at Monk's cafe whom George accused of stealing a $20 bill from him. She can be seen in the background at the cashier at Monk's in almost every episode that has Monk's cafe in it.

She appeared in 101 episodes, making her the most frequent character to appear after the four main characters.