Casey Treat was born and raised in a suburb of Seattle, Washington. As a teenager, he was heavily involved with drugs and entered Washington Drug Rehabilitation Center, a Christian-based program founded by Julius Young. It was here Casey was born again, called into ministry, and began to develop his leadership philosophies.
Casey entered Seattle Bible College where he met, and in 1978 married, Wendy Peterson. They served in their local church, conducted Bible study groups, and toured the Seattle area with their musical group, The New Version. Casey also started a local radio broadcast.
Casey Treat is the author of dozens of books, audio, and video teaching series, which are distributed at large conventions and churches. Casey and Wendy Treat and their three children reside in the Seattle area.