Explanation

He is a character modeled after a former professional baseball pitcher who is now well-known as a baseball commentator and sports commentator, Masahiro Yamamoto. Being knowledgeable about horse racing as well, he provides his own voice for the character in all episodes except for episode 3. Notably, in the end credits, he is credited not under his stage name "Yamamoto Masashi" but under his real name "Masahiro Yamamoto."