- Name: 錦戸亮 (にしきど りょう)
- Name (romaji): Nishikido Ryo
- Nicknames: Ryo-chan, Nishiki, Nishi-yan, Dokkun
- Profession: Singer and actor
- Birthday: November 3, 1984
- Birthplace: Amagasaki, Hyogo Prefecture, Japan
- Hometown: Kadoma, Osaka Prefecture, Japan
- Height: 169.9cm (5'7")
- Weight: 55kg (123lbs)
- Measurements: B87/W69/H86cm*
- Zodiac Sign: Scorpio
- Blood Type: O
- Shoe Size: 27cm (26.5 for sneakers)
- Family: Parents, two elder brothers, a younger sister
- Instruments: Guitar, harmonica, piano.
- Talent Agency: Johnny's Entertainment (left September 2019)
- Groups: Kanjani8(left September 2019)
- Entered Johnny's: September 6, 1997
- Radio Show: Music Paradise (used to be co-hosted with Uchi Hiroki. The show ended on 2008)
- Best Friends: Akanishi Jin, Kusano Hironori, Yamashita Tomohisa
- Favorite Colors: Yellow, green, black, grey.
- Favorite Animal: Dog
- Disliked Animal: Cat (He's allergic)
- Favorite Food: Rice, ramen, yakisoba, miso soup, garlic rice, pickled ginger, ginger fried pork cutlets and anything with mayonnaise.
- Disliked Food: Fish, onion, carrot, green peas, sweets, chocolate.
- Favorite Countries: Japan, America, France.
- Favorite Cities: Tokyo, Osaka.
- Favorite Artists / Bands: Saito Kazuyoshi, The Beatles, Red Hot Chili Peppers, Tokyo Jihen, Nirvana, ACIDMAN, Remioromen, Mr. Children, Ueda Masaki.
- Favorite Actors: Orlando Bloom, Brad Pitt, Anthony Hopkins, Denzel Washington.
- Favorite Films: The Silence of the Lambs, About Schmidt, The School of Rock, Taxi Driver, John Q, The Hunchback of Notre-Dame, Harry Potter
- Favorite Books: The diary of Anne Frank, The Da Vinci Code, Kurt Cobain Biography, Anthony Kiedis Biography Scar Tissue, Hontou wo de yo, Fish Story, Golden Slumber, Kokuhaku, Shoujo, Paradox13, Akunin.
- Favorite Sport: Soccer
Nishikido Ryo ((born on the 3rd of November, 1984 in Osaka) is a Japanese Singer/Actor and a member of the group Kanjani8 from the agency, Johnny & Associates.
Nishikido auditioned for his agency on September, 1997 and passed with fellow Kanjani8 members Yasuda Shota, Okura Tadayoshi and Maruyama Ryuhei. In February 2000, he released a single "Secret Agent Man" under the group Secret Agent. In 2003 He was chosen as a member of News and in the following year Kanjani8 made their CD debut. As a result of being in Johnny's he started appearing in dramas soon after joining the company, On January 2006 Nishikido held his first solo live "Ryo Nishikido Live" from January 5th to 9th in Yokohama arena and Osaka-jo hall.
- His image color in Kanjani8 is yellow.
- A big fan of Saito Kazuyoshi.
- His parents are Kyushuan immigrants. His father is from Amakusa (Kumamoto Prefecture), and his mother is from Amami (Kagoshima Prefecture).
- Yokoyama Yu gave him the nickname "Dokkun" because of his sharp tounge.
- Is a good cook.
- Has, actually, cried over food. It was apparently very delicious.
- Calls his mother "Kaachan" (mommy).
- On his private time he often hangs out with Matsumoto Jun, Yamashita Tomohisa, Yasuda Shota, Ohkura Tadayoshi, Akanishi Jin, and Uchi Hiroki.
- Has got the nickname "Nikki" from a cameraman who works at the magazine Myojo.
- Loves to play the guitar, usually he plays it when he stays at home.
- Until he was around 16 years old he was only 150 cm tall and used to jump a lot in order to make other people believe he was taller.
- He donated some of his earnings from 1 Litre of Tears to the research for the cure of Spinocerebellar Degeneration, Aya Kito's disease in 1 Liter of Tears.
- Has a tendency to lie a lot. Though, differently from Subaru he admits that he lied just a little while afterward.
- Has been the victim of bad press among international fans, who make him out to be vindictive, spiteful and (in extreme cases) actually insane.
- Doesn't actually hate Ueda Tatsuya anymore, contrary to popular belief.
- Loves to tell his friends to cut their hair and bug them about it until they do. Recent 'victims' include Kato Shigeaki and Yamashita Tomohisa.
- Is, according to Yokoyama, the one in Kanjani8 who makes most of the decisions when it comes to the group, but is by no means the leader.
- He doesn't like talkative girls.
- Has repeatedly made it known that he believes that Japanese people should have black hair; while his has been both brown and blonde, it has never stayed that way for long.
- Has said that if he woke up in a woman's body, his first action would be to touch his breasts.
In September it was announced, that Nishikido left Johnnys and Kanjani8.
-  Binbo Doshin Goyocho
-  Nekketsu Renaido as Tadao (Episode 13)
-  Shichinin no Samurai J ke no Hanran
-  Kowai Nichiyobi ~Shinsho~ (Episode 4)
-  Peace Wave ~ ukulele and boy as Hisada Makoto
-  Worst date in History as Kitagawa Kengo (Episode 8)
-  Zenigetchu!! as Matsukami Kounosuke
-  Card Queen as Kurata Tomoya
-  Teruteru Kazoku as Kuroubara Kazuo
-  Ganbatte Ikimasshoi as Sekino Hiroyuki (Bu)
-  1 Litre of Tears as Asou Haruto
-  Attention Please as Nakahara Shota
-  Kemarishi as Kuroshima
-  Dive to the Future as Shitada
-  Attention Please SP as Nakahara Shota
-  1 Litre of Tears SP as Asou Haruto
-  Isshun no Kaze ni Nare as Kamiya Kenichi (guest)
-  Last Friends as Oikawa Sosuke
-  Ryusei no Kizuna as Ariake Taisuke
-  Orthros no Inu as Aoi Ryosuke
-  Niini no Koto wo Wasurenaide
-  JOKER Yurusarezaru Sosakan as Kawai Keisuke
-  Bartender (ep8)
-  Inu wo kau to iu koto
-  Zenkai Girl
-  Papadol!
-  Yorozu Uranaidokoro Onmyoya e Yokoso
-  Gomen ne Seishun!
-  Samurai Sensei
-  Uchi no Otto wa Shigoto ga Dekinai
-  Saigo Don
-  Chonmage Purin as Kijima Yasubei
-  Eightranger
-  Kenchou Omotenashi ka
-  Dakishimetai
-  Eight Ranger 2
-  The scythian Lamb
-  Yanbo Mabo ~ 40th Anniversary Weather Forecast (with Yasuda Shota)
-  Sukiyanen Instant Ramen - with Kanjani8
-  Oronamin C (with Okura Tadayoshi and Ueto Aya)
-  TV Guide (with Kanjani8)
- [200?] U.F.O NEXT GENERATION (with Kanjani8)
-  RUSS-K (with NEWS)
-  UFO Nissin Ramen (with Kanjani8)
-  LAWSON (with NEWS)
-  KOSÉ ~Happy Bath Day (with NEWS)
-  7-Up clear dry
-  Music.jp (with Kanjani8)
-  7-11 (with Kanjani8)
-  Scalabo (with Kanjani8)
-  Suntory C.C.Lemon (with Kanjani8)
-  Denny's Salmon burger
- [2011.05.xx] Wink up 2011 June Issue (Feature)
- 7th Nikkan Sports Drama Grand Prix (2003-04): Best Newcomer / Teruteru Kazoku
- 12th Nikkan Sports Drama Grand Prix (Spring 2008): Best Supporting Actor / Last Friends
- 57th Television Drama Academy Awards: Best Supporting Actor / Last Friends
- 12th Nikkan Sports Drama Grand Prix (Fall 2008): Best Supporting Actor / Ryusei no Kizuna
- 13th Nikkan Sports Drama Grand Prix (Summer 2009): Best Supporting Actor / Orthros no Inu