Nettles portrays Aimee-Leigh in flashbacks and photographs. Jennifer Nettles as Aimee-Leigh Gemstone, Eli's deceased wife and mother of Jesse, Judy, and Kelvin.Dermot Mulroney as Rev John Wesley Seasons (season 1), a pastor of a much smaller congregation, forced to compete with the Gemstones' new church in Locust Grove.BJ works in an optometrist's office in a local grocery store. He is often intimidated by Judy, although it's apparent that he really loves her. Tim Baltz as Benjamin Jason "BJ" Barnes Judy's sensitive and mediocre fiancee, and later, husband.
Gregory Alan Williams as Martin Imari, Eli's right-hand-man and accountant.Baby Billy resides at his and Aimee-Leigh's childhood home, with his much younger wife, Tiffany. Baby Billy and Aimee-Leigh were a song-and-dance double-act as children, but Baby Billy's financial dependence and bad influence on Jesse and Judy strained his relationship with her and Eli. A faded child star and frequent liar, Baby Billy is tapped to fill the pulpit at the Gemstone Prayer Center, a satellite church located in a mall. Walton Goggins as "Baby" Billy Freeman (season 1, recurring season 2), Eli's brother-in-law and brother of the deceased Aimee-Leigh Gemstone.Skyler Gisondo as Gideon Gemstone, Jesse's oldest son, who moved to California to be a stunt performer, an act that Jesse considered to be a betrayal.Cassidy Freeman as Amber Gemstone, Jesse's supportive and loving wife, who seems mostly oblivious to Jesse's negative qualities.Keefe reveres Kelvin as a spiritual leader. Tony Cavalero as Keefe Chambers, a dim-witted ex-Satanist and roommate of Kelvin, who works security at the Gemstone's church.Judy, the middle child, often feels underestimated by her family and is prone to neurotic and psychopathic behavior. Edi Patterson as Judy Gemstone, Eli's daughter.He shares his mansion with his recent convert and friend, Keefe Chambers. Adam DeVine as Kelvin Gemstone, Eli's youngest son and youth pastor of the Gemstone Salvation Center.Although not as greedy or as crude as his children, Eli does occasionally prioritize his own wealth and status over his ministry.
Eli is a widower, having lost his wife, Aimee-Leigh, one year prior to the start of the series. Eli Gemstone, the patriarch of the Gemstone family and lead pastor of the Gemstone Salvation Center. Although appearing to be a faithful father and husband, Jesse barely conceals a crude and arrogant personality and a debauched lifestyle, which he often partakes in with his "gang" of friends and subordinates.