A law firm cetirizine dihydrochloride phenylephrine hydrochloride and paracetamol tablets There’s also plenty of gossip with so many precocious personalities — and their parents. Joe O’Connor, who played the father on “Clarissa Explains It All,” calls the mother of the sitcom’s star, Melissa Joan Hart, a “show mom.” And David Rhoden, who played Merv on “Welcome Freshmen,” reveals his “total crush” on Hart. Of their two dates, he says, “She was a sweetheart and a little shyer than people might think.”