Just a note that I've just removed all the "Executive Producer" credits as they are credited under the "Planning" (企画) credit (the history shows that I added them anyway, so I'm only undoing my own additions).

If this crew job ever becomes available:

• Season 1: Yoshihiro Hosaka, Katsunori Haruta, Naoki Nakamura, Ichiro Seki
• Season 2: Shigeru Tateishi, Katsunori Haruta, Naoki Nakamura, Ichiro Seki
• Season 3: Shigeru Tateishi, Katsunori Haruta, Naoki Nakamura, Ichiro Seki, Teruki Matsumoto (松本輝紀), Atsushi Iwasaki (岩崎篤史)

And some seasonal "Production Assistant" credits have been removed as they are actually "Assistant Producers" (アシスタントプロデューサー). It's a different job, apparently. The "Producer's Assistant" crew job available sounds more secretarial, so it doesn't feel like that fits either (I'm not really sure, so I'll just leave it out for now).

• Season 1: Miho Ichii (all episodes)
• Season 2: Yasutaka Hyuga (all episodes), Takashi Enomoto (shows for only episodes 1 to 15 of the ED credits)
• Season 3 (plus S00E03): Satoshi Nishiyama (西山聡).