T.K. Takaishi is the younger brother of Matt Ishida and the love interest of KarI Kamiya appearing in the Digimon series. He has short blonde hair and blue eyes. In the first season, his outfit is composed of: a green hat, a green long sleeved shirt, brown shorts with a pair of white training pants inside, yellow socks and green and white shoes. In the second season, his outfit is composed of: a white fisherman hat, a blue and yellow long sleeved shirt, blue shorts with a ??? inside, purple socks and blue shoes. He is voiced by Wendee Lee in the first season, while in the second season, he is voiced by Doug Erholtz. At his age in the first season, he is 8 years old, while in the second season, he is 11 years old.
- Nancy Takaishi and Hiroaki Ishida (Parents)
- Ginu and Michel Takaishi (Grandparents)
- Matt Ishida (Older Brother)
- Kari Kamiya (Love Interest)
- Davis Motomiya (Rival)
- ??? pretty girls
- The way Davis ??? Kari