It's The Greatest American Hero actor William Katt! The actor starred as teacher Ralph Hinkley who is given superhuman abilities by a group of aliens in the ABC show, which ran from 1981-1983. The ...

The Greatest American Hero was a superhero comedy series that aired on ABC from 1981 to 1983 and starred William Katt as the titular character, a school teacher given a super suit by an alien race ...

When we were growing up, Stephen J. Cannell 's The Greatest American Hero was one of those shows whose impact lasted much longer than its actual run, from 1981 to 1983.

‘The Greatest American Hero’ Debuted 44 Years Ago Today! Here Are 8 Facts You Didn't Know About the Show 44 years ago, the theme song almost hit No. 1 on the Billboard charts.