Yuugis Black Magician
Namaikina Imouto
Fujisaku: Ok, I thought about doing Pewter. Can I add Brock?
Tomiyasu: Who?
Fujisaku: ... that friend Ash has had for years? He was on SM
Tomiyasu: Ah, that guy that wasn't part of my alola cast but mandated? No!
Kodaira: Hey, you should have made this question for me
(not real dialogue by the actual people but it'd be a lot more funnier if it was)
Takeshi is in several episodes of Sun & Moon, though. He wouldn't be against Takeshi being included.