Nicholas Groff (born April 19, 1980) is a co-investigator and executive producer of Ghost Adventures, as well as an editor and cameraman for the show. Groff was executive producer for a show on the Travel Channel called Vegas Stripped, a behind-the-scenes look at the operations of the South Point Hotel, Casino & Spa in Las Vegas, NV.
Born in San Jose, California, Groff grew up in New England. He graduated from Pelham High School in New Hampshire and later studied film at the University of Nevada, Las Vegas, where he met Aaron Goodwin. At the age of eight he fell out of a tree in the yard of his family's home in Salem, New Hampshire, which Groff described as "a near-death experience". Two years later, while at home alone, he says he saw a ghostly black figure. In a 2012 interview, Groff questioned, "Was it my imagination? Or was it something from my accident that made me more open to that world?"
Groff befriended Bagans during Groff's wedding in Las Vegas. Groff claims he was possessed by an entity at the Moon River Brewing Company in Savannah, Georgia and says it was one of his "most life-changing experiences". According to Groff, an encounter with a female spirit at the Linda Vista Community Hospital in East Los Angeles, California gave him insights into life after death. Groff was allegedly possessed in Natchez, Mississippi during the investigation of King's Tavern.
Groff released an album entitled The Other Side. The lyrics recall Groff's spiritual journey. He also has a clothing line named "Phantom Collection". As of 2012, he and his wife Veronique reside in New Hampshire and Massachusetts with their daughter, Annabelle.