McComb was born in Belfast, Northern Ireland, the son of a physician who was knighted for his contribution to X-ray research.
[citation needed] McComb decided to develop a talent he discovered at school as a magician and comedian.
[citation needed] One role was Walter Wilder in the 1995 film Lord of Illusions, directed by Clive Barker.
Books he wrote include The Professional Touch and Mc Comb's Magic: 25 Years Wiser.
He was sought after by many as the answer man in magic when a magician was having difficulty locating or developing a particular routine.