Takeru "T.K." Takaishi (高石 タケル Takaishi Takeru?) is a character in the anime and manga series Digimon Adventure and Digimon Adventure 02. He is the younger brother of Yamato "Matt" Ishida. He is partnered with Patamon, and embodies the trait of Hope. in Digimon Adventure 01, T.K. is the youngest Digidestened. He is a very sweet kid and very well liked by the other kids.
He hates it when his big brother Matt gets into a conflict or fight with Tai, the leader of the Digidestined.