I'm not sure how widespread it was or how long they were there for, but for a period of time Churchill, and perhaps some other stations, had turnstiles as well. These photos are at the ERRS Archive.
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Bonus pictures of a ticket agent in action, and a ticket agent booth at Belvedere (1979).
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EDIT: I am digging through the Edmonton Journal archive. I still can't find when the turnstiles were removed, but it looks like they were at least at the underground stations (Belvedere is a possibility but the article mentioning it was unclear), and there were two kinds: Free-moving turnstiles for those with transfers and passes, and locked turnstiles that riders inserted coins into, which would then unlock and print a ticket. The turnstiles were introduced with the Proof-of-Payment system that replaced ticket agents - although agents remained for a period of time during the transition.