The Hofstadter Isotope

A fellow comic book enthusiast hits on Penny which leads to Leonard, Raj, and Howard going to a bar on Ladies' Night.

Season 2 | Episode 20
TV-14-DL
PRESENTED BY
Cast

Jim Parsons

Sheldon Cooper

Johnny Galecki

Leonard Hofstadter

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Raj Koothrappali