Daiya Oyama (小山ダイヤ) is a recurring character in Shinkalion. He first appears in Episode 01 of Season 1 and Episode 08 of Season 2. He is originally voiced by Kōhei Amasaki but recasted to Noriaki Kanze instead since Episode 26.
- Daiya has high degree of nearsightedness, so he always wears a pair of glasses.
- He is listed as “メガネ” (“Glasses”) in the credit of his first speaking episode.
- He is so far the only character that has been recasted in Japanese dub.