| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Naoto Fujimura | Crew | Production | Producer | 3 |
Tetra Tanizaki | Crew | Sound | Theme Song Performance | 48 |
Hiroko Baba | Crew | Camera | Camera Operator | 3 |
Koichi Nakamura | Crew | Lighting | Lighting Technician | 2 |
Hiroshi Nishiyama | Crew | Directing | Director | 4 |
Ken Kumata | Crew | Production | Executive Producer | 40 |
 Hajime Sakita | Crew | Sound | Music, Main Title Theme Composer, Theme Song Performance | 508 |
 Dwight D. Eisenhower | Cast | Actor | Self (archive footage) | 1 |
Elizabeth Suzuki | Cast | Self | 1 | |
 Todd Rundgren | Cast | Actor | Self - Guest | 1 |
 Marty Friedman | Cast | Actor | Self | 1 |
 Brother Tom | Cast | Actor | Self | 1 |
 Matt Alt | Cast | Actor | Self - Reporter in Plus One | 195 |
 Peter Barakan | Cast | Actor | Self - Host | 309 |
J. Martin Holman | Cast | Actor | Self | 1 |
 Marie Kondo | Cast | Actress | Self - Expert | 1 |
Chad Mullane | Cast | Actor | Self - Comedian | 2 |
 Emma Howard | Cast | Actress | Self - Narrator (voice) | 270 |
Mateusz Urbanowicz | Cast | Actor | Self | 1 |
 Izuhi Higashioka | Cast | Actress | Self - Expert | 1 |
 Miho Shinoda | Cast | Actress | Self - Expert | 1 |
 Kyle Card | Cast | Actor | Self - Reporter in Plus One | 8 |
Harold George Meij | Cast | Actor | Self | 1 |
 Josh Grisdale | Cast | Actor | Self | 1 |
Matt Schley | Cast | Self - Reporter in Plus One | 1 | |
David McMahon | Cast | Self - Reporter in Plus One | 1 | |
 Vinay Murthy | Cast | Actor | Self - Reporter in Plus One | 1 |
 Lemi Duncan | Cast | Actress | Self - Reporter in Plus One | 1 |
 Peter MacMillan | Cast | Actor | Self | 1 |
Yoshihiro Nakano | Cast | Actor | Self - Expert | 1 |
Kyoko Kodama | Cast | Actress | Self - Expert | 1 |
Hiroko Kimura | Cast | Actress | Self - Expert | 1 |
Nobuhiko Koike | Cast | Actor | Self - Director, Chofu City Library | 1 |
Nobue Kunizaki | Cast | Actress | Self - Expert | 1 |
Shigehito Kobayashi | Cast | Actor | Self - Expert | 1 |
Etsuko Yamada | Cast | Actress | Self - Expert | 1 |
Denso Sugiura | Cast | Actor | Self - Expert | 1 |
Ichiro Oda | Cast | Actor | Self - Expert | 1 |
Hidetoshi Katori | Cast | Actor | Self - Expert (Professor) | 2 |
| Person | Type | Job | Role(s) | Episodes |
