When Moran went to audition for the role of Michael Myers in 1978, he met for an interview with director John Carpenter and producer Irwin Yablans.

Through the late seventies and early eighties, he has made guest appearances in several television series including CHiPs, The Waltons, James at 15, and California Fever.

Moran made unsubstantiated allegations about director John Carpenter's relationship with producer Debra Hill, and insinuated that Jamie Lee Curtis was sexually active with the crew of the film.

He was also heard using homophobic slurs towards later Michael Myers actors Tyler Mane and James Jude Courtney during podcast appearances.

[7] Due to his previous conduct, Moran was banned from attending the 2023 Halloween: 45 Years of Terror convention by its organizer, Sean Clark.