Tonight on NBC, Steven Pasquale stars as Dr Jekyll and Mr Hyde, or rather Dr Jason Cole and Mr Ian Pierce, two sides of a very split personality, in the new drama series DO NO HARM.  Jason is a brilliant surgeon who has been able to keep his evil side at bay with the help of a friend and modern medicine, for 5 years.  On his birthday, Ian rears his ugly head (well, it’s not ugly, since Pasquale is attractive,