Originally from Ohio, Jonathan Joseph Hanousek moved to Los Angeles in 1986. After developing a successful salon clientele, he started accepting opportunities to work in television, becoming one of the top hair stylists in Hollywood. In 2000, he was awarded best contemporary hairstyling in a television series by the Hollywood Makeup Artist and Hair Stylist Guild.

For the final four seasons of the hit television show Friends, Hanousek was the department head hair stylist and was featured on the ninth season DVD. This led to working on films with actors such as Meg Ryan, Amanda Peet, Christina Applegate, John Cusack, Lisa Kudrow, Maggie Gyllenhaal, and Selma Blair.

Eventually, Hanousek left the salon to pursue his freelance career fulltime and work with top photographers Annie Leibowitz, Art Streiber, Greg Gorman, James White, Marc Abrams, and Mathew Rolston to name a few. His work has appeared in many publications including Allure, Cosmopolitan, Elle Girl, Fashion, Flare, Glamour, Glow, In Style, Interview, Vanity Fair, and W Magazine, among others. Hanousek's hairstyles can be seen regularly at red carpet events, award shows, and premiers. His clients include Hilary Duff, Brook Shields, Kate Beckinsale, Ginny Goodwin, Jordana Brewster, Katherine Heigl, Kim Raver, Kirstie Alley, Kristen Chenoweth, Marcia Cross, Maria Bello, Mena Suvari, Mischa Barton, and Rita Wilson.

Hanousek appeared on cycle 5 of America's Next Top Model. He is interviewed and quoted regularly as a celebrity hair expert in numerous magazines such as Details, Elle UK, Glamour, In Style, Life and Style, and People.