Ann Wedgeworth ( born January 21 , 1934 ) is an American character actress , known for her roles as Lana Shields in `` Three 's Company '' and Merleen Elldridge in `` Evening Shade '' .
Ann Wedgeworth ( born January 21 , 1934 ) is an American actress . She is best known for her roles as Lana Shields on `` Three 's Company '' and Merleen Elridge on `` Evening Shade '' .