Pamela Anderson (Baywatch / VIP) - Raw Justice (1994).
Shannon Tweed (Nothing) - A Woman Scorned (1994).
Patsy Kensit (What Did She Ever Do, Exactly?) - Bitter Harvest (1993).

Nicole Eggert (T J Hooker / Baywatch) - Blown Away (1992).

Kristy Swanson (Buffy The Vampire Slayer) - Zebra Lounge (2001).
And there you are. I've finally gone porn and it's working for me. Most of these are young ladies whose careers have seen better times. A couple went this way from the get go. One film up there wasn't strictly straight to video but it bloody should have been.
Now, I don't expect many people will know the film titles, if you do you're in serious danger of staying in and Whacking Off too much, so just the names will do.
Coming soon: Top 10 Hammer films.