In JN020, Growlithe helped stop a group of Pokémon from fighting by using its Roar to scare them away. Ash then proceeded to introduce Growlithe to the group he was in charge of during a Pokémon Orienteering competition.
In JN024, Growlithe and Officer Jenny showed up to stop the Matori Matrix, but they escaped.
Personality and characteristics
Growlithe as a puppy
Growlithe are very loyal towards each Officer Jenny, as shown in a flashback in their debut episode depicting one of the Growlithe as a puppy.
Growlithe are the signature Pokémon of the Officer Jennys working in the Kanto, Johto, Hoenn, and Sinnohregions, but they will sometimes use different Pokémon. The Officer Jenny in Mutiny in the Bounty! used Growlithe's evolved form, Arcanine. In some parts of the world, police forces will have special Pokémon teams, such as Spinarak in Spinarak Attack. The Officer Jennys of other regions use different Pokémon as Growlithe are not generally found there.