In which TV series is Damon Salvatore a main character?

In which TV series is Alicia Florrick a main character? Who played Elena Gilbert in 'The Vampire Diaries'? In which TV series is Elena Gilbert a main character? Who played Damon Salvatore in 'The Vampire Diaries'? Who played Richard Castle in 'Castle'? Who played Rick Grimes in 'The Walking Dead'? In which TV series is Rick Grimes a main character? Who played Daryl Dixon in 'The Walking Dead'?