What actors and actresses appeared in Ssssssss - 2003?

There is no film titled "Ssssssss - 2003". Perhaps you are thinking of a different movie?

The most likely candidate is "SSSSSSS" (1973), which is a horror film starring:

* Dirk Benedict as David

* Strother Martin as Dr. Stoner

* Heather Menzies as Helen

* Richard Anderson as Professor Croft

* Bernie Casey as The Snake Handler

If you are thinking of a different film, please provide more information!