| This minifigure has only appeared in television episode(s)|
Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
Arcturus is an Anacondrai and has purple and black patterns. He has a snake like head and tail. He has green eyes and big, white fangs. Arcturus wears an snake-patterned belt, and the usual Anacondrai armor in golden, marking him the head of the Anacondrai generals.
According to a flashback in "Spellbound", Arcturus was once the head general of the Anacondrai tribe of Serpentine, the strongest warriors of Ninjago. Originally, he and the other generals were going to make a truce with the people. However, Chen tricked both the humans and snakes, starting a battle between the two. Arcturus and the Anacondrai were victorious until the Sacred Flute was founded and used to combat the Serpentine, driving them into separated tombs. The Anacondrai generals were then brought to court. Arcturus then begged for mercy, but Garmadon banished the generals into the Cursed Realm.
In "The Corridor of Elders", Arcturus and the generals' ghosts return from the Cursed Realm after Garmadon was sent there to take their place and they defeated the fake Anacondrai. Arcturus then dubs Lloyd and the Ninja, the greatest warriors in all of Ninjago. He also compliments Pythor for assisting the Ninja and turns him back to his original size. He and the generals then descend to the Heavens.
- There is a point of space named after him; that being The Four Golden Weapons.
- Project Arcturus was named after him.
- Ninjago: Masters of Spinjitzu