In many minds Topher Grace will always be the lovable, geeky, Eric Foreman from That 70s Show. When he left the show after its seventh season, he was already in serious danger of becoming typecast as the boy next door. By taking on the role of Eddie Brock, or Venom, in the movie Batman 3, he got to display a completely different style of acting.
Topher Grace was only 20 years old when That 70s Show went on the air. By the time the seventh season rolled around, he was no longer a boy but had grown into a 27 year old man and wanted to play roles that displayed that growth.
There were and still are rumors that the reason why did Topher Grace leave That 70s Show, depart the role of Eric was partly due to the fact that he didn’t feel really accepted or liked by the rest of the cast, but the truth is he was simply more of an introvert than the others. He didn’t like to spend as much time partying as his cast mates.