John Lithgow has called controversial Harry Potter author JK Rowling a “deeply empathetic person” while discussing her views on trans people. Lithgow joined other past Tony Award winners like Nathan Lane and Rose Byrne in a 4 June roundtable interview hosted by The Hollywood Reporter. The actor is currently a frontrunner for this year’s Best Actor gong for his turn as Roald Dahl in Giant. When asked if the play, which has prompted a number of th…