In early May, Harper revived his alliance with Erick Rowan. After Rowan suffered an injury, Harper reunited with Bray Wyatt on July 19 at Battleground by helping him defeat Roman Reigns. This led to a tag team match between Harper and Wyatt against Roman Reigns and Dean Ambrose at SummerSlam, which they lost after Reigns pinned Wyatt. The following night on "Raw", Braun Strowman joined Harper and Wyatt as the new member of The Wyatt Family. At Night of Champions The Wyatt Family defeated Reigns, Ambrose and Chris Jericho in a six-man tag team match. On the October 19 episode of "Raw", Erick Rowan returned to The Wyatt Family when he filled in for Harper (who was unable to show for personal reasons). The Wyatt Family then got involved in a feud with The Brothers of Destruction (The Undertaker and Kane), which built to a tag team match on November 22 at Survivor Series, where the two defeated Harper and Wyatt. The next night on "Raw", Harper teamed with Wyatt again to defeat The Dudley Boyz, igniting a new feud. Over the next weeks, Tommy Dreamer and Rhyno joined The Dudley Boyz in the feud, leading to an eight-man tag team tables match at , where Harper, Wyatt, Rowan and Strowman were victorious. On January 24, 2016, Harper competed in the Royal Rumble with fellow Wyatt Family members and he was eliminated by Brock Lesnar, but returned to the ring later on with The Wyatt Family members to eliminate Lesnar. Harper and Wyatt were defeated by Lesnar in a 2-on-1 handicap match at the Roadblock event on March 12. On March 21, Harper suffered a knee injury during an untelevised match on "Raw", sidelining him for five to six months. After getting an MRI, it was revealed that he had dislocated his patella and tore his medial patellofemoral ligament. Because of his injury, Harper was not drafted to either Raw or SmackDown in the 2016 WWE draft.