Rally Vincent and Minnie May Hopkins are just a pair of gun shop owners who do a bit of bounty hunting to make ends meet when a Bureau of Alcohol, Tobacco, Firearms agent comes to them. Using the threat of arresting them for their lack of a retail license for their merchandise and the resulting unpaid taxes, he forces them to agree to cooperate in a sting to break a gun running ring. They have an initial success, but that brings new problems as the ring's leader brings in a merciless assassin to eliminate these new enemies. It will take all their skill, allies and some luck to come out this crisis alive.
Unfortunately the movie Gunsmith Cats is not yet available on HBO Max.
| Writing | Kenichi Sonoda | Original Story |
| Directing | Takeshi Mori | Director |
| Writing | Atsuji Kaneko | Screenplay |
| Writing | Takeshi Mori | Storyboard |
| Directing | Kazuya Murata | Second Unit Director |
| Visual Effects | Kenichi Sonoda | Character Designer |
| Visual Effects | Norihiro Matsubara | Character Designer |
| Sound | Peter Erskine | Music |
| Visual Effects | Norihiro Matsubara | Animation Director |
| Visual Effects | Koji Sugiura | Mechanical Designer |
| Visual Effects | Katsuichi Nakayama | Animation Director |
| Visual Effects | Kazuya Murata | Animation Director |
| Visual Effects | Masahiro Kurio | Animation Director |
| Visual Effects | Toshihisa Kaiya | Animation Director |
| Visual Effects | Toshimitsu Kobayashi | Animation Director |
| Visual Effects | Yuriko Chiba | Animation Director |
| Production | Teruo Miyahara | Executive Producer |
| Production | Hiroo Takimoto | Producer |
| Production | Toshiaki Okuno | Producer |
| Production | Umeo Ito | Producer |
| Editing | Shuichi Kakesu | Editor |
| Crew | Noriyuki Ohta | Special Effects |
| Production | Hiroyuki Fukumoto | Associate Producer |
| Production | Mitsuru Oshima | Associate Producer |
| Production | Tetsuo Genshou | Associate Producer |
| Art | Akihito Fujimori | Background Designer |
| Art | Ayumi Shimazu | Background Designer |
| Art | Kazuo Ogura | Background Designer |
| Art | Kiyomi Enomoto | Background Designer |
| Art | Kumi Nagumo | Background Designer |
| Art | Makoto Shiraishi | Background Designer |
| Art | Tadashi Kudo | Background Designer |
| Art | Yoji Nakaza | Background Designer |
| Visual Effects | Fujika Enomoto | Fix Animator |
| Visual Effects | Tetsuya Hara | Fix Animator |
| Visual Effects | Hidenori Matsubara | Animation |
| Visual Effects | Mahiro Maeda | Animation |
| Visual Effects | Takao Yoshino | Animation |
| Visual Effects | Takashi Hashimoto | Animation |
| Visual Effects | Akira Otsuka | Key Animation |
| Visual Effects | Chihiro Hayashi | Key Animation |
| Visual Effects | Hideki Hamasu | Key Animation |
| Visual Effects | Hiroyuki Morita | Key Animation |
| Visual Effects | Hiroyuki Okuno | Key Animation |
| Visual Effects | Junichi Hayama | Key Animation |
| Visual Effects | Katsuichi Nakayama | Key Animation |
| Visual Effects | Kenichi Yoshida | Key Animation |
| Visual Effects | Kouichi Hashimoto | Key Animation |
| Visual Effects | Masaya Saitō | Key Animation |
| Visual Effects | Masayuki Gotou | Key Animation |
| Visual Effects | Noriko Moritomo | Key Animation |
| Visual Effects | Norio Matsumoto | Key Animation |
| Visual Effects | Ryunosuke Otonashi | Key Animation |
| Visual Effects | Shigeyuki Suga | Key Animation |
| Visual Effects | Takehiro Noda | Key Animation |
| Visual Effects | Takuya Saito | Key Animation |
| Visual Effects | Tetsuhito Saito | Key Animation |
| Visual Effects | Tokuyuki Matsutake | Key Animation |
| Visual Effects | Toshihisa Kaiya | Key Animation |
| Visual Effects | Yuichi Tanaka | Key Animation |
| Visual Effects | Yuriko Chiba | Key Animation |
| Sound | Brian Risner | Sound Designer |
| Visual Effects | Kazuya Iwata | Key Animation |
| Art | Kazuo Nagai | Art Direction |
| Art | Kazuo Nagai | Background Designer |
| Visual Effects | Shinya Takahashi | Opening/Ending Animation |
| Visual Effects | Kenji Hattori | Key Animation |
| Directing | Kazuya Murata | Director |
