Who Played Magda in "Don't Tread on Pete"?

I noticed that some of the guest appearances from the end credits are not on IMDB. Also, all of the notable characters seem to be credited except Magda. If I'm not mistaken, Emma Jean Jones played Mrs. Beardsley. Her only other credit can be seen and read about on here. The only other female name from the guest appearance credits is Mary Rose. Was Magda played by Mary Rose? Surely a character that has so much screen time was credited.

Thoughts?


🎼"I'm looking at the river, but I'm thinking of the sea"🎵