Zyobot
Just a time-traveling robot stranded on Earth.
Danny Trejo being the rancor trainer was one of the best parts of the series so far.
Though I'll echo that I found the swoop/Vespa bike gang to be underwhelming in their chase scene. They proved somewhat useful against Krrsantan, but even then they seemed kinda...unserious.
Like, why knife him in the ribs in surprise, when the Wookie's neck was wide open?
... Furry plot armor, I guess?