Magnus was born and raised in Ojai, California where he made personal projects and participated in improv shows. He studied at the SUNY Purchase Film Conservatory in New York where he graduated with a BFA in filmmaking. It was after performing in his colleagues' projects at SUNY that his love for acting also flourished. He went on to study at the William Esper Studio. The training he received there has heavily influenced and improved his screenwriting by teaching him about character work, from behavior to dialogue.
Magnus has written a handful of feature films, shorts, and a TV show.