Magnus was born and raised in Ojai, California. He acted in his own projects and in plays in high school. He also participated in improv shows at the Theater 150. He later studied at State University of New York at Purchase where he graduated with a BFA in filmmaking. It was only after acting in his colleagues' projects at SUNY that his love for acting really flourished. He then went on to study the craft at the William Esper Studio. In 2013, Magnus signed with manager JoAn Kincaid. He resides in Los Angeles. And yes, Magnus is his real name. It's his great grandfather's name and it's not a stage name.