Sadaharu

Sadaharu is a Yorozuya member and pet, but he also serves as the group's mascot. He is mostly taken care of by Kagura, but Sakata Gintoki occasionally has to walk him, much to his chagrin. He also saves the planet by stopping an alien cockroach invasion.

Sadaharu has a big part in a lot of the "Gintama" anime's events. As you can expect, the "Gintama" anime is filled with a lot of tragic situations, and this dog is crucial to the plot. The sisters quickly outgrew their ability to care for this large white-furred, red-collared dog. He was shortly delivered to the Yorozuya, with whom he has been ever since (let's hope they don't keep giving him milk and strawberries).

Sadaharu has unquestionably earned his position on our list with amusing incidents and all the times he appeared in disguise. But that habit of biting your head! Outside of his change, Sadaharu was a skilled fighter who could take on the Amanto soldiers with his allies. He has the ability to control the flow of Altana within the points because he is the protector of the Dragon's Veins. But as a result, he is kept in a sealed state, between life and death, in order to keep his body connected to the planet.

Anime: Gitama
IMDb: 8,7