Full Name (English): Kim Ju-hoon  Date of Birth / Age: January 3, 2008 (Age 18)  Position in CORTIS: Vocalist, Rapper, Visual he love turtles he is very quiet person but very funny (the one who loves you)

Full Name (English): An Keon-ho  Date of Birth / Age: February 14, 2009 (Age 17)  Position in CORTIS: Main Vocalist, Dancer the youngest Favorite animal/things: He loves cats and has a great passion for music, dancing, and fashion.the happy one who always loves to annoys the other

Full Name (English): James Zhao (Zhao Yufan)  Date of Birth / Age: October 14, 2005 (Age 20)  Position in CORTIS: Dancer, Rapper, Vocalist (Main Dancer / Choreography & Creative contributor) he is the oldest Favorite animal/things: He loves cats and has a strong passion for dancing, fashion, music production,

Full Name (English): Eom Sung-hyun (Sean Eom)  Date of Birth / Age: January 13, 2009 (Age 17)  Position in CORTIS: Vocalist, Dancer (also recognized as a songwriter and producer)  Favorite animal/things: He loves cats and dogs, and enjoys basketball, skateboarding, cycling, movies, and music.loves to annoys the other and always fights with keonho

Full Name (English): Martin Edwards  Date of Birth / Age: March 20, 2008 (Age 18)  Position in CORTIS: Leader, Singer, Songwriter, Producer Favorite animal/things: He loves dogs and has a deep passion for writing, playing musical instruments, producing music, and fashion.