Nicholas "Nick" 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. He is a co-founder of GAC, the Ghost Adventures Crew. 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 and later studied film at the University of Nevada, Las Vegas, where he met Aaron Goodwin. After graduation, his interest in the paranormal led him to become a ghost hunter. His fascination in the field, however, began much earlier in life. At the age of eight he fell out of a tree in the yard of his family's home in Salem, New Hampshire. Groff describes it as "a near-death experience," though he underwent none of the events traditionally associated with a near-death experience, such as seeing deceased relatives or being drawn toward a tunnel of light. Two years later, while at home alone, he saw a ghostly black figure. In a 2012 interview, Groff said he wondered: "Was it my imagination? Or was it something from my accident that made me more open to that world?"^[11]

After Groff met and befriended Bagans during Groff's wedding in Las Vegas, the two joined forces.^[12][13]

One of Groff's most life-changing experiences was apparently being possessed by an entity at the Moon River Brewing Company in Savannah, Georgia.^[14] A similarly startling experience was a face-to-face encounter with a female spirit at the Linda Vista Community Hospital in East Los Angeles, California. This encounter gave Groff insight into what he had been searching for: life after death in this world. Groff uses the term "Energy Doesn't Die," and is still searching every day for that next experience that will bring him closer to the other side.

Groff released a music CD entitled The Other Side. He wrote, produced and sang all the tracks. The lyrics recall Groff's spiritual journey.^[15]

As of 2012, he and his wife Veronique reside in New Hampshire and Massachusetts with their daughter, Annabelle.^[15]