I also spoke with EP/writer Eugenie Ross-Leming, and I asked if the writers and producers have any method of keeping track of 300 episodes (and counting, at the time) of continuity.
Lois and Clark... The role was ultimately played by Lane Davies ... ... [...] He turned it down ... Davies joked that executive producer Eugenie Ross Leming must have known that he was “a lot cheaper” than the other two choices for Tempus ... .