On the following page, Nick Radford is showing 21 appearances, but there are only 19 episodes that have aired so far. Two superfluous Season 1 episodes were removed recently, so this appears to be a bug caused when episodes are deleted. (The number should say 19. I imagine that some of the other characters also have incorrect counts as a result. But I haven't checked.)
http://www.tvmaze.com/shows/1177/good-witch/characters
To fix this I recommend that this count be updated every time someone deletes an episode or a season etc. Also for backup, any time this number is changed due to adding or removing of a character, instead of incrementing or decrementing the number, it could be recalculated.

