Who played Dawson Leery in 'Dawson's Creek'?

In which TV series is Willow Rosenberg a main character? Who played Angel in 'Buffy the Vampire Slayer'? In which TV series is Angel a main character? Who played Ally McBeal in 'Ally McBeal'? In which TV series is Dawson Leery a main character? Who played Joey Potter in 'Dawson's Creek'? Who played Pacey Witter in 'Dawson's Creek'? In which TV series is Pacey Witter a main character?