Premise: Persons listed with a double asterisk (**) are producers who have won the Tony Award for Best Musical and/or the Tony Award for Best Play. Those listed with a triple asterisk (***) have won the Tony Award for Best Direction of a Musical and/or Play. Those listed with a quadruple asterisk (****) have won the Tony Award for Best Actor or Best Actress in a Musical or Play.
Hypothesis: Only actors can get ****