KISS nearly broke up after the movie because Peter Criss and Ace Frehley were increasingly unhappy. Their manager, Bill Aucoin, suggested that the band split up temporarily and record solo albums. Frehley's album ended up with a top single.
According to Paul Stanley in VH1's "KISS: Behind The Music", Ace Frehley often failed to show up during shooting, so Ace's stunt double, an African-American, had to act in some scenes and fill in for Ace on some of the fight scenes. The stunt double's voice was overdubbed to sound like Ace (there are differing versions as to whether Ace or a sound-alike did the overdubbing).
Peter Criss was dubbed, because he wouldn't show up to do looping (re-recording lines in post-production). His voice was dubbed by voiceover artist Michael Bell, who did a lot of work for Hanna-Barbera.
Though exclusively a TV movie in the U.S., it was released in theaters in several foreign countries. Retitled "Attack of the Phantoms", it featured additional scenes and KISS songs not included in the TV version.
Almost all of Ace Frehley's fight scenes were performed by an African American stunt double made up to look like him. In his autobiography "No Regrets", Frehley noted that, during filming, he was plagued by alcoholism and would repeatedly leave the set due to becoming bored with the long filming hours. His stunt double is also mentioned in a booklet of liner notes for KISSology: The Ultimate KISS Collection Vol. 2 1978-1991 (2007), wherein Frehley talks about amusingly convincing others that his stunt double was him actually doing the fighting with a quip about "taking gymnastics in high school".
When this was originally shown on "NBC Saturday Night at the Movies", on October 28, 1978, the opening trailer bumper was announced by New York NBC staff announcer Fred Collins, while Peggy Taylor, one of the network's Burbank-based staff announcers, did commercial and ending bumpers.