Juston Roy Graber was born in Buffalo, New York to Lori (Brennan) and Roy A Graber, who worked as a construction worker/roofer. His mother is of Italian and Irish descent and his father's side is comprised of mostly Polish ancestry. Juston's father always stressed the importance of education, however, Juston did not attend college until later in life.

As a child, Juston never found it difficult to make others laugh, even if it meant at his own expense. His outgoing personality craved the spotlight; natural comedic and dramatic qualities attracted Juston to the entertainment industry. His close friends helped to spark Juston's interest and pursuit of acting as a career. They all agreed that his personable traits, along with his discipline, fellowship, genuineness, and even goofiness, might elicit even greater abilities as an actor and establish a solid foothold in a rough, but promising business.

After a short, eight-year, stint in the United States Army, Juston painstakingly dove head-first into theatre training. Beginning his journey at the Savannah College of Art and Design and eventually ending up at the University of Southern California where he earned a Bachelor of Arts in Theatre.

Juston eventually met and partnered with a fellow veteran to form Anthony Roy Productions where he writes, produces, and of course, acts in numerous independent films, theatrical productions, improvisation, and voice acting. Their award-winning short-film Orisha (2020) won "Best Horror" in the Los Angeles Film Awards, the Festigious International Film Festival, the Florence Film Awards and the Top Shorts Film Festival to name a few during a year-long film festival run.