In 'Boy Meets World', who is Cory Matthews's best friend?

In 'Black-ish', which actor plays Andre "Dre" Johnson? In 'The Wonder Years', who plays Kevin Arnold? In 'Doogie Howser, M.D.', who played the teenage doctor? In 'Growing Pains', which actor played Mike Seaver? In 'That '70s Show', in which fictional Wisconsin town is the series set? In 'Malcolm in the Middle', who plays the father, Hal? In 'The Nanny', who plays Fran Fine? In 'Will & Grace', what is Grace's profession?