Here's a brief flashback to what happened with Buddy and the reason his cameo is discussed 20 years later.Īfter gaining recognition via 3rd Rock from the Sun, Joseph was a guest star on That '70s Show season 1 episode 11 titled Eric's Buddy. The actor depicted Buddy Morgan that aired during the inaugural season of the series back in 1998. Joseph Gordon-Levitt featured in one of the most memorable episodes of That '70s Show that many fans would deem a defining moment for TV. Joseph Gordon-Levitt only appeared briefly on That '70s Show, but he was part of a historic episode because of his scene with Topher Grace.