This was the first American television series to be shot entirely on location in Ireland.
A second season entitled Mystic Knights: Battle Thunder was planned with a sixth Mystic Knight named Liam, the Mystic Knight of Lightning, but was later cancelled, and its budget was put towards Power Rangers: L'Autre Galaxie (1999).
The first original non-Japanese special-effects series from Saban rather than adapting from actual Japanese tokusatsu.
Numerous sets and costumes from the series were later reused in St. Patrick: The Irish Legend (2000).