Nancy Robertson (Wanda) actually is claustrophobic.
The actor portraying Stan at the mini-golf course, credited as Mayor Pat Fiacco, was in fact the serving mayor of Regina, Saskatchewan. He served in office 2000-2012.
Tara Spencer-Nairn (Karen) starred in Season 7, episode 6 of Murdoch Mysteries called "Murdochophobia" in which her character was one of the patients at the phobia clinic trying to battle her Pteronophobia; the phobia of feathers.