For Halloween. Raj was Aquaman.
The Big Bang Theory Season 12, Episode 24
Halloween traditions
The Big Bang Theory Season 12, Episode 6
You even went as Avatar
for Halloween.
The Big Bang Theory Season 11, Episode 9
PRIYA: I can't believe I'm wearing
my brother's Halloween costume.
The Big Bang Theory Season 4, Episode 24
Except the Halloween costume
The Big Bang Theory Season 7, Episode 2