They cast the new
Professor Proton.
The Big Bang Theory Season 11, Episode 15
I just don't want to be
Professor Proton anymore.
The Big Bang Theory Season 6, Episode 22
No, they're watching
the new Professor Proton.
The Big Bang Theory Season 11, Episode 15
Professor Proton,
it's an honor to meet you.
The Big Bang Theory Season 6, Episode 22
SHELDON:
Nice to meet you, Professor Proton.
The Big Bang Theory Season 6, Episode 22