Movies of Mark Simonson and Shannon Duncan together

Mark Simonson and Shannon Duncan have starred in 1 movie together. Their first film was TeenAlien in 1978..

Use the timeline above to view all the movies that Mark Simonson and Shannon Duncan have starred in together. You can use the arrows or the arrow keys on your keyboard to slide from left-to-right along the timeline. If you have a touch device, you can slide left-to-right as well.

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