Dr. Footstep/Manga

Dr. Footstep debuts in Bombastic Bibarel & Heroic Hippopotas at the Seven Stars Restaurant where he is seen collecting the footprints of 's Chatler, and waits outside so he can get more. After Pearl and finish a battle with some Trainers, Dr. Footstep appears to take the footprints of their Pokémon. He invites, Diamond, and Pearl to his house so he can show them his collection. Soon after, they find an angry wild that sends them flying after Dr. Footstep collects its footprint. Dr. Footstep and Pearl land at Lake Valor and are carried by a wild that carries them to the island in the lake. They eventually manage to swim back to shore, where they find that Platinum and Diamond have defeated a pair of s that attacked them. Dr. Footstep gives them a as thanks and goes to take the scientists to the proper authorities, although he gets distracted by a wild  along the way.

Much later, in Double Trouble with Dialga and Palkia V, Dr. Footstep is seen waiting impatiently at a police station for the interrogation of the scientists to end, so he can get the footprints of their Pokémon. He eventually decides to leave and once he exits the police station, he finds himself transported to the Spear Pillar where Diamond, Pearl, Platinum, and Cynthia are battling the leader of Team Galactic, Cyrus. When a Regigigas arrives to help the Sinnoh Pokédex holders battle Cyrus, Dr. Footstep takes its footprint to convey its feelings to everyone.

Dr. Footstep, together with the Sinnoh Pokémon Association Chairman, joins Diamond and Pearl for a short while, but decides not to accompany them to Old Chateau when he realizes that does not leave footprints, instead waiting with the Chairman. He is last seen in The Final Dimensional Duel XI after the battle with, explaining that the Pokémon has calmed down.