- Billing Displacement: In the end credits, Thunderbolt's voice actor, Barry Botswick, was listed first; the voice actor for The Hero Patch, Bobby Lockwood, was credited fourth.
- Dub Name Change: In the Finnish dub, Thunderbolt's name became Salama ('lightning'), Lil' Lightning's name became Pikku Jopi and Patch's name became Kikero.
- Fake Brit: Everyone but Patch, Pongo and Roger's voice actors.
- The Other Darrin: Everyone. What is the deal with the white-eared Lucky?
Trivia / 101 Dalmatians II: Patch's London Adventure