Geshe Michael Roach is the founder and spiritual director of Diamond Mountain. He was born in Los Angeles in 1952 and was raised in Phoenix, AZ. As a student at Princeton University he concentrated his studies in religion and ancient Sanskrit and Russian language. He met his teacher Khen Rinpoche Geshe Lobsang Tharchin in 1972 in the U.S. and studied very closely with him after that time. He was ordained as a Buddhist monk in 1983 and is entirely fluent in the spoken and written Tibetan language. After approximately 20 years of daily intensive study with Khen Rinpoche in New Jersey and at Sera Mey monastery in Southern India, Geshe Michael received the Geshe degree in 1995 (akin to a Doctorate of Divinity). He has also studied extensively at Sera Mey with Geshe Thubten Rinchen, one of the great living scripture teachers.

Lama Christie McNally has studied under eminent Tibetan lamas in India and Nepal, and is a translator of Tibetan and Sanskrit. She is a co-author of The Tibetan Book of Yoga, The Essential Yoga Sutras, How Yoga Works, and King of the Dharma. A member of the first Diamond Mountain 3-Year Retreat, Lama Christie McNally has spent over a decade studying and teaching meditation, Buddhist philosophy, and yoga. Along with Geshe Michael, Lama Christie McNally has taught in over a dozen nations to hundreds of thousands of people.

At Diamond Mountain Lama Christie McNally teaches the Tantric Course Series and Bok Jinpa: Setting Your Meditation on Fire, both of which courses are the first of their kind ever to have been taught outside of Asia. Lama Christie is one the world's premier female teachers of Buddhism.

Bikram Choudhury (born 1946) (Bengali) is a multi-millionaire Indian yoga guru and the founder of Bikram Yoga, also known as Hot Yoga, a copyrighted series of 26 hatha yoga postures that are performed in a hot (105 degrees Fahrenheit or greater) environment. Choudhury is a student of Bishnu Ghosh (brother of Paramahansa Yogananda, author of Autobiography of a Yogi). The Bishnu Ghosh guru lineage has focused on translating Eastern philosophies and practices into a language that is more closely attuned to the Western mindset than can be found within their original traditional Indian contexts.

Sri Dharma Mittra is a Yoga teacher, and a student of Sri Swami Kailashananda Maharaj. Best known for creating the Master Yoga Chart of 908 Postures, his "influence on the yoga world extends far beyond the nearly 50,000 copies of that poster that have been printed since Mittra completed the laborious project in 1983." He has been teaching since 1967, and is director of the Dharma Yoga Center in New York City.