In 'The West Wing', which actor played President Josiah Bartlet?

Which producer co-created 'The Big Bang Theory' and 'Two and a Half Men'? Which producer created 'All in the Family' and 'The Jeffersons'? Which producer created 'Happy Days' and 'Laverne & Shirley'? Which writer created 'The West Wing'? In 'All in the Family', what is the name of the bigoted father played by Carroll O'Connor? In 'The Honeymooners', what is Ralph Kramden's job? Which series follows cab drivers at the Sunshine Cab Company? In 'The Mary Tyler Moore Show', in which city does Mary Richards work?