Nickelodeon actress, 54, flaunts ageless beauty a decade after the show ended

Big Time Rush actress Challen Cates is now 54, but fans of the Nickelodeon series from the Noughties are stunned at how youthful the TV beauty still looks today. In recent Instagram snaps, Noughties star Challen Cates has wowed fans with her ageless beauty. The US actress, 54, first shot to fame as Jennifer Knight, the mother of Kendall and Katie, in the US sitcom Big Time Rush. But over a decade, she looks as if she has barely aged. Challen's latest Instagram pictures show her posing in Paris with the Eiffel Tower in the background and giggling by a pool with her husband, Aaron McPherson. And fans could not get over how young she looked in the gorgeous shots. Many commented on how youthful the TV star looked in the pictures. "You don't change; you're as pretty as ever," said one fan. Another called Challen, "a goddess," and another said: "Wow. Your age, you're a fine wine, but you and Aaron have somehow mastered the art of 'aging slowly.' exigence, c.' passion, comfort in your skin, caring - wow—great things to have. One admirer called the actress "an inspiration," while another said she was "absolutely stunning." After sharing a snap from her recent birthday, another wrote: "Happy birthday to the beautiful woman who never ages. "So beautiful," agreed a tribute fan. Another joked: "Sorry, who made you look so hot?" "You look amazing," said another fan. Challen is best known for playing Jennifer in Big Time Rush, which ran from 2009 to 2013 and starred Kendall Schmidt and Ciara Bravo. Other television credits include Roseanne, Diagnosis: Murder, Criminal Minds and Desperate Housewives. She has two children with actor husband Aaron, who has starred in films including The Expendables 2 and A Million Ways To Die In The West.