- The Other Darrin: In Borderlands 2, Wilhelm's dialogue is heavily distorted to emphasize how he's barely even human anymore. They had Todd Haberkorn voice him just because they knew the end result wouldn't sound anything like him. Since Wilhelm is far more human and has far more dialogue in The Pre-Sequel, Todd's higher pitched voice doesn't fit the ruff-n-gruff mercenary, so he's voiced by Bryan Massey instead.
- Refitted for Sequel: Nisha's outfit in this game seems to have come from one of the rejected concepts◊ (the top right design) for her from Borderlands 2, seen in that game's art book.
- Talking to Himself: Claptraps all have the same voice, even ones with different personalities (like the Customs Claptrap who thinks he's Judge Dredd, or Moxxi's bar-bot who somehow gets drunk on alcohol.) Playing as Claptrap the Fragtrap while interacting with these others can get a little confusing. Jack and his Doppelganger fall under this category too, usually only distinguishable by the real Jack's more confident tone and dialogue.
Trivia / Borderlands: The Pre-Sequel!