Castelius III evolves into Castelius II when fused with another Castelius III.
- Yo-kai Watch: Befriending Yo-kai
- Yo-kai Watch animation: Minor Yo-kai
Castelius III and the rest of his line resemble temples with arms, and a mustache, they also appear to be carrying a flag with them, Castelius III in particular has a bronze coloring.
Whomever this Yo-kai inspirits, no matter how much effort they put in, they will always end up in 3rd place.
Castelius III appears on the 3rd floor of the Construction Site at night (Downtown Springdale).
Castelius III can be found in Gates of Whimsy and in Breezy Hills under vending machines. He can also be found around Breezy Hills under cars, as well as in Mystery Way and the Construction Site.
Alternatively, Castelius III can be freed from the Crank-a-kai with an Orange Coin in the present.
Castelius III can be befriended rarely as a reward for beating a mission in Chapter 5, alternatively he can be found in patrol in Breezy Hills
Castelius III can be found inside Bear's House in Blossom Heights at both daytime and nighttime.
Castelius III can be found in the Nocturne Hospital, alternatively he can also be befriended in a Busters-T dungeon, Tomb of King Nuff
Yo-kai Watch animation series
Castelius III, along with Castelius II and Castelius I, made their anime debut in episode 167.
| Tolerance of attribute attack|
Strong × ⇒ △ ⇒ - ⇒ ○ ⇒ ◎ weak
- Befriended: "You're too strong! A third-rate Yo-kai such as myself stands no chance!"
- Loafing: "Ohh..."
- Receiving food (favorite): "Hrm, good..."
- Receiving food (normal): "Good enough..."
- Receiving food (disliked):
- Freed from Crank-a-kai: "Like strong and sturdy bronze, let's make the future better together."
"Dōkaku" translates as "bronze pavilion" (Japanese: 銅閣).
See Castelius II#Origin.
- Castelius III, along with Sonaandaa, and Morula, are the only Yo-kai part of a evolution chain that is more than two Yo-kai in length.
In other languages
- Spanish: Castelius III
- Italian: Castelius III
- German: Kastellan III
- French: Castelius III
- Portuguese(Brazil): Castelus III