A look back on the best pseudonyms from the characters of Seinfeld .
H.E. Pennypacker
Who: Kramer
When: "The Millenium"
Why: To help Elaine get revenge on a store by repricing all the merchandise in the store with his pricing gun.
Source: youtube.com
And in "The Puerto Rican Day" Pennypacker becomes an interested buyer for an apartment, in order to use its bathroom.
Kel Varnsen
Who: Jerry
When: "The Puerto Rican Day" and "The Boyfriend".
Why: To catch up on the Mets game in a stranger's apartment.
He pretends to be working at George's imaginary "Vandelay Industries."
Source: youtube.com