If you mean the character Kendall Knight then he is dating the character Jo Taylor.
No he isn't.
Yes
As of my last update, Kendall Knight, a character from the TV show "Big Time Rush," is often portrayed as having romantic interests throughout the series. However, if you're referring to a real person, Kendall Schmidt, the actor who plays Kendall Knight, has kept his personal life relatively private. Therefore, his current relationship status may not be publicly known. For the latest updates on his dating life, it's best to check recent news or his social media.
No, Kendall Schmidt does
sarah bailey
He's real name is Kendall Schmdit but in Big time rush he's Kendall Knight
Jennifer Knight
No he is not married.
Written by a Kid - 2012 Kendall the Knight 1-7 was released on: USA: 29 August 2012
No
Katie Knight is Kendall's younger sister, portrayed by Ciara Bravo.
In the show, Big Time Rush, Kendall's name is Kendall Knight, but in real life it is Kendall Schmidt. Hope this helps! ;)