- Stage Name: Kato Shigeaki (加藤シゲアキ)
- Real Name: Kato Shigeaki (加藤成亮)
- Nickname: Shige
- Birthday: July 11, 1987
- Birthplace: Osaka, Osaka Prefecture, Japan
- Height: 175cm (5'9")
- Weight: 60kg (132 lbs)
- Blood Type: A
- Pets: Dog (Nana)
- Radio Shows: SHIGET TOGETHER (2005-2008), SORASHIGE BOOK (2011-)
Kato Shigeaki joined Johnny's Entertainment in April of 1999 and was in the unit J-Support a.k.a K.K.Kity before he was selected to be in NEWS. He is often recognized as the smartest member of NEWS and also the one with the least self-confidence. He plays guitar and has composed a few songs with Yamashita Tomohisa and Tegoshi Yuya.
Kato is an avid writer and writes his blog from the perspective of a fictional cat named Wagahai. This is in parody of the popular book by Natsume Soseki entitled "Wagahai wa Neko de Aru" or I Am a Cat. He attended Aoyama University where he majored in law . He graduated in March 2010 , becoming the 3rd member in NEWS after Koyama Keiichiro & Yamashita Tomohisa in attaining an University education .
- He loves cats, but sadly, is allergic. Therefore, his J-web entries are written from his "imaginary" cat Wagahai's point of view. In some way or another, Wagahai mentions Koyama and Koyama's cat Nyanta. They manage to set up "play dates" together.
- Kato Shigeaki, who is usually called "Shige", became a member of NEWS, together with Koyama Keiichiro and Kusano Hironori, after they were all in K.K.Kity, one of the Johnny's Jr. groups.
- For quite a while he was known as the most "underloved" and "underpromoted" member of NEWS, comparing to other members. Even though he is considered as the most intelligent and smart person among members, he seemed to rarely get chances to prove his abilities. However, after the return of NEWS, he has gradually been promoted and become more popular with changes in his appearance.
- He watches a lot of Japanese movies.
- He generally bad at sports with the exception of basketball and tennis.
- He can ride a unicycle.
- In order to study acting he is said to have bought many DVDs.
- He is left handed.
- He has narcolepsy.
-  3-nen B-gumi Kinpachi Sensei
-  Home Drama
-  Gekidan Engimono
-  Busu no Hitomi ni Koishiteru
-  Kakure Karakuri
-  Papa to Musume no Nanokakan
-  Sugata Sanshirou
-  Hokaben
-  Chichi yo, Anata wa Erakatta
-  TROUBLEMAN
-  Shin Jidan Koshonin Ura File
-  Hanawake no Yon Shimai
-  Blackboard
-  Hana no Zubora Meshi
-  Shitsuren Chocolatier
-  Kasa wo Motonai Aritachi wa
-  Toki wo Kakeru Shoujo
-  Konnanyatte Mimashita.
-  SEMINAR
-  6 gatsu no Bitter Orange
-  Naka no Hito
- [2011.05.xx] LOOK at STAR! July 2011 Issue (Cover & Feature)
- [2012.01.28] Pink and Grey (ピンクとグレー)
- [2013.02.26] Senko Scramble (閃光スクランブル)
- [2014.03.21] Burn. (-バーン-)
- [2015.06.01] Kasa wo Motonai Aritachi wa (傘をもたない蟻たちは)