It's a short list. I would include Shaun Cassidy, Robby Benson, Mario Lopez, and certainly Billy Warlock.
Born in 1961, Billy burst into the picture in 1982, during the last season of Happy Days, hired to up the beefcake quota of the doddering sitcom by wearing a trademark cut-off t-shirt. The teen magazines went crazy, and soon Billy's pin-ups were pushing aside such luminaries as Scott Baio and Ralph Macchio.
2. Although he enjoys the company of woman, Bill enjoys some strong buddy-bonding and rescue moments with his friend Milo (Evan Richards)
3. A woman seduces Bill by ripping off his pants. They kiss passionately. While this is occurring, the camera is aimed directly at his briefs. You can imagine what happens next.
Days of Our Lives (1988-1991, 2005-2006)
General Hospital (1997-2003)
The Young and the Restless (2007-2008)
As the World Turns (2010)
One Life to Live (2010)