This is a list of cameo appearances by celebrities or characters from other media.
0-9[]
A-D[]
- Abdullah the Butcher - Chapter 3
- Alien - ep 3
- Ambassador Magma - Chapter 22
- André the Giant - Chapter 3
- Antonio Inoki - Chapters 3,11,13,17,32,33,38,42,103
- Bruce Lee - Chapter 33
- Batman - Appears in chapter 1. Chapter 8 also.
- Captain America - Appears in chapter 1
- Clark Kent - Referee in the All-American Tag match
- Chiharu Matsuyama
- Daimajin - Chapter 13; censored in reprints
- Dan Moroboshi - Appears in the Pilot
E-H[]
- Father of Ultra - Appears in the Pilot. Appears in Chapter 15 buying a lottery ticket.
- Emi Watanabe - Chapter 37
- Earth - Chapter 13
- Gekko Kamen - Chapter 22
- Giant Baba - Chapters 3,13,17,32,33,36,38,42
- Giant Robo - Chapter 22
- Gigan - ep 3
- Goranger
- Godzilla - Chapter 11, Ch 13, Ch 15; censored in reprints
- Hiroko Yakushimaru
- Hisashi Eguchi - Chapter 32
I-L[]
- Ilia - Chapter 52
- Ittetsu Hoshi - Chapter 33
- James Bond - Chapter 33
- Jesus Christ - Appears in the Pilot, imagined by Kinnikuman
- Jiro Makino - Chapter 9; Member of Akaiwa Corps with sunglasses
- King Ghidorah - Chapters 16, 28, ep 3
- Kinichi Hagimoto - Chapter 5; Kinnikuman mistakes his fans for his own
- Koichi Hamada - chapter 61
- Kotetsu Yamamoto - Chapters 4,97-98; Color Commentator for 21st Chojin Olympics: The Big Fight B-Block
- Lou Thesz - Chapter 3; Sayuri Kinniku holds up a picture of him
- Lt. Doolittle - ep 3
M-P[]
- Margaret Thatcher - ep 9
- Mary Poppins - ep 16
- Masami Kurumada - Chapter 29, kicking a bespectacled man
- Masaru Nashimoto - Chapters 37,42,43,45
- Masayoshi Ōhira - Prime Minister (manga); chapters 7,12,51
- Miguel de la Madrid - ep 9
- Mil Máscaras - Chapter 3
- Misha - Chapter 29
- Mister Fantastic - Appears in chapter 1
- Mother of Ultra - Appears in the Pilot
- Mothra - Chapter 13; censored in reprints
- Muhammad Ali - Ch 96
- Nobuhiko Horie - Chapter 33
- Nǃxau - eps 16,24
- Pierre Trudeau ep 9
- Prince Charles
- Princess Diana*Masutatsu Ōyama - Chapter 5; threatens to defeat Nessie
Q-T[]
- Rocky Balboa - Kinnikuman disguises as him in chapter 24
- Red King - Appears in the Pilot
- Sadaharu Oh - Chapter 25,33, movie 1
- Tamori - ep 34,movie 1
- Tatsuro Hirooka - movie
- Toshihiko Seko - ep 29
- Rodan - Chapter 13; censored in reprints
- Ronald Reagan - ep 9, Movie 6
- Ryoko Okazaki - In Chapter 36, Kinnikuman takes the form of Ryoko Okazaki from Tennis Boy
- Ryuji Takane [1] - ch 77
- Santa Claus - ep 3
- Seiko Matsuda - movie 1
- Seiji Sakaguchi - Ch 103
- Shigeru Kobayashi - Chapter 4
- The Sheik - Chapter 3
- Shin Hayata - Appears in the Pilot
- Shuto Go - Killed by a bowl of Tendon in chapter 21
- Skyrider - Chapter 31; censored in reprints
- Spider-Man - Appears in chapter 1; he slipped off a wall and was hospitalized. Chapter 8 also.
- Suguru Egawa - Chapters 20,33
- Superman - Appears in chapter 1; his cape is at the laundromat. Chapter 8 also.
- Kamen Rider - Chapter 22
- Takanohana Kenshi [2]
- Taiyō ni Hoero cast - Chapter 33
- Tatsumi Fujinami - Chapter 46
- Tauntaun - ep 3
U-Z[]
- Ultraman - Appears in the Pilot, later appears in Chapter 1 shown on vacation. Also chapter 22.
- Ultraman Ace - Appears in the Pilot
- Ultraman Jack - Appears in the Pilot
- Ultraman Leo - Appears in the Pilot
- Ultraseven - Appears in the Pilot, later appears in Chapter 1 shown on vacation.
- Ultraman Taro - Appears in the Pilot
- Ultraman Zoffy - Appears in the Pilot
- Yasuhiro Nakasone - Prime Minister (Anime) eps 1,9,18; movie 1
- Yoda - ep 3
- Yoko Katashiho - Chapter 21
- Yoshio Tabata - chapter 61
- Wonder Woman - Appears in chapter 1