Megan was in Blue Velvet!!
On the recent BluRay release of Blue Velvet, they included an hour of deleted scenes that they just recently found after 25 some years. Included in the first 10 minutes are several scenes of Megan as lead character Jeffrey Beaumont's college girlfriend "Louise". I didn't recognize her when I watched it, but the credits showed her name and I went back and watched them again and there's no mistaking that it's the same person (just 25 years younger).
Pretty cool, I thought, and so I wanted to share it with you fine people! :)