Based on the manga by Yasuhiro Nightow, the 1998 TV series was directed by Satoshi Nishimura based on the series composition by Yousuke Kuroda.
Crackle has bulked up a bit more with some anime from Funimation thanks to their partnership by adding the Trigun series along with the Trigun Badlands Rumble movie.
Meryl, who leads the pair, refuses to believe that the man they have met can possibly be the legendary gunman.