Games in the Tales of franchise typically have some sort of animal sidekick. While Mieu in Tales of the Abyss is one of the better ones thanks to being a barometer measuring Luke fon Fabre’s character development, Mieu isn’t a dog.
Repede from Tales of Vesperia is a dog — and one with impeccable style and presence. He carries a pipe in his mouth and swaps it out for weapons during combat, both of which make for a pretty hard act to beat.
Repede doesn’t necessarily have much story significance in Vesperia, other than being a reminder of how difficult protagonist Yuri Lowell’s past has been. Beyond plot necessity, though, he's a genuine friend to the isolated Yuri, with all the loyalty and affection we'd expect from the best dogs — and all that in spite of what Yuri did in the past to Repede's father.
Repede's also a true beast in combat.
He’s one of the first party members you get, and also one of the rare examples of using a “pet” as a full-time party member — outside Breath of Fire III, at least.
While he might not be much of a magic user, Repede is speedy and strong, with powerful technical Artes attacks and the ability to strike and retreat with haste. Add his theft ability on top of that, and he’s a character you’ll want to regularly keep on the field.
Repede is exactly what all good dogs are: invaluable and adorable.