Louis C.K. originally wanted Zach Galifianakis to play the part of Jeff. But Galifianakis was unavailable.
C.K. specifically wanted a dog with reddish fur to match his red hair.
A part was shot in which Louie imagines himself being rubbed by the dog pound volunteer in place of the dog but it was deleted.
This is the first episode of the series that only has one story instead of two segments.
Louie's ex is heard for the first time, but she is not seen.