Bryan Cranston
Bryan Cranston had one cameo on Baywatch in 1989. He played Tom Logan, a cheeky boat owner who always argued with lifeguards. Before this, he had been on a few other TV shows here and there but nothing major.
Bryan Cranston Today
Today, everybody knows Cranston from the hit show Breaking Bad. He played Walter White, a high-school chemistry teacher dianosed with lung cancer. He won a Primetime Emmy Award for Outstanding Lead Actor in a Drama Series.