Cheryl

Character Information
In The Middle Earth Paradigm, Cheryl attended Penny's Halloween party and bumped into Raj. She proceeded to ask him "How wasted am I?", but Raj didn't answer because of his selective mutism. Later that night, it was revealed that Cheryl had sexual intercourse with Raj and she stated it was because he was a good listener.

In her second appearance (The Pancake Batter Anomaly ) she only served to warn her fellow waitress; Penny about Sheldon  who was presumed to be crazy.