Rabbi Rosenberg has had, by any standards, an eclectic life. He began his career as a stage actor studying at New York's famed School of Performing Arts ("Fame") and then continued on to Carnegie Mellon University, where he graduated with a Fine Arts degree. He worked as a professional actor, director and teacher for 40 years – appearing in some of the most renown stage productions, Academy Award winning movies, and Emmy Award winning television shows.
He then had a spiritual awakening, causing him to begin his Jewish studies in earnest. Ultimately, after studying and teaching around Los Angeles in Kochav, at Jewish Vocational Services, leading Torah Study at the West Valley JCC and leading High Holy Day services at Vista Del Mar in Culver City, he finalized his training and was ordained at the Rabbinical Seminary International in New York as a student of Rabbi Joseph Gelberman.