costar Katherine Helmond, who died last month. Helmond, who famously portrayed mother Mona Robinson in ABC’s Who’s The Boss? for eight years and Jessica Tate on Soap, died on Feb. 23 of ...
star Katherine Helmond dies at 89 Katherine Helmond ... as well as such fictional characters as Jessica Tate on Soap, Mona Robinson on Who's the Boss?, Doris Sherman on Coach, and Lois Whelan ...