At SDSCPA, he portrayed lead roles in select feature productions, including Danny Zuko in 'Grease' (2004) and Marius in 'Les Miserables' (2006). He attended acting camp at the La Jolla Playhouse, and got his first agent when he was 14. He had a small role in the San Diego Opera's production of La bohème when he was 10 years old. He attended La Jolla and Torrey Pines elementary schools, Muirlands Middle School, and San Diego School of Creative and Performing Arts (SDSCPA). Maslow began training as a singer t the age of six, when his parents placed him in the San Diego Children's Choir.
He has described himself as a 'religious and spiritual person'. Maslow was raised Jewish and attended Hebrew school six days a week during his childhood. His father is Jewish and his mother is Catholic. He has an older brother named Philip Maslow and a half-sister named Ali Thom.
He is the son of Cathy Burge and Mike Maslow. James Maslow was born in New York City, New York and raised in La Jolla, California.
