https://screenrant.com/that-90s-show-season-2-seth-green-70s-return/

Another guest star from That '70s Show who appeared in five episodes of the original teen sitcom is returning for That '90s Show season 2.

That '90s Show Season 2's Confirmed Original Actor Return After 20 Years Can't Work Without 1 Huge Cameo (https://screenrant.com/that-90s-70s-show-mitch-seth-green-eric-cameo-need/)

An original That ‘70s Show star is returning for That ‘90s Show season 2, but this means another cameo from the original series needs to happen.