Born in Texas and raised in his hometown of Sacramento, Guzman never thought of becoming an actor, much less a professional dancer. At the age of seven, he developed an interest in martial arts and earned his first black belt in Tae Kwon Do by the age of ten. This led him into the octagon as a Mixed Martial Arts (MMA) fighter in Sacramento until his fighting license expired in 2010. A gifted athlete, he was also a sought-after left-handed pitcher with a fastball clocked between 87-90 miles per hour. A shoulder injury ended this career dream while Guzman was still a teenager, which transitioned later into a career in print modeling and then acting.
Guzman worked successfully in San Francisco, starting with LOOK Modeling Agency at the age of 18, and later in Los Angeles, he joined the esteemed Wilhelmina Agency at 22 years old. Guzman has since starred in television commercials for Old Navy, Gillette, Candies and Oprah Winfrey Network. He has modeled for Abercrombie & Fitch, Affliction and Reebok, among others.
After success in modeling, Guzman signed on with a talent manager and went into the audition process as a professional actor. A few short months later, he booked the male lead for the film Step Up Revolution (Lionsgate).
He followed the success of the film with another lead in the indie film Beyond Paradise and supporting roles in the indie films There's Always Woodstock, directed by Rita Merson, and April Rain, directed by Luciano Saber. After the international success of Step Up Revolution, Ryan reprised his role as Sean in Step Up: All In alongside fan-favorite female from the past films, Briana Evigan. The film was directed by Trish Sie.
Recently, Ryan was seen as the male lead opposite Jennifer Lopez in the Universal Studios thriller The Boy Next Door. Helmed by Paranormal producer Jason Blum and director Rob Cohen, the film centered on Ryan's character, a teenage boy who lived next to Lopez's character.
Ryan also starred as the male lead in the iconic 80s live-action remake of Jem and the Holograms. Guzman played Rio Racheco, the road manager and love interest for Jem. The film is directed by Jon M. Chu and released in October 2015.
Next, Ryan starred in Everybody Wants Some, the spiritual sequel to Dazed and Confused, from writer and director Richard Linklater, that centers around a group of guys on a baseball team in the 80s. The film released to great reviews in April 2016.
In addition to his upcoming films, Ryan has been cast as a regular in NBC's event series Heroes Reborn, opposite Jack Coleman and Zachary Levi. The 13-episode event series is a follow-up with a new story and set of characters said to take place after the events of the original series. Ryan will play a former military guy. The series premiered on September 24, 2015.
His television credits include the ABC Freeform series Pretty Little Liars, where he has remained a hot topic among many of the show's diehard fans.
Guzman currently resides in Los Angeles.