In the waning years of Dallas there were plenty of new characters who added either no value or next to no value to the show. In a terrible decision to try to make the show look younger, they brought in the characters of James Beaumont and Michelle Stevens. How many people thought they added anything significant to the show? They couldn't act, especially Sasha Mitchell, and I think the storyline between him and JR was lame. Before them they had Tommy McKay and his sister Tracy. Again these people could not act well at all, and they cheapened the show. Then there was Liz who they brought in as Cliff's love interest. She wasn't as bad at acting as some of the others I've just named but Cliff had finally done something smart. He learned that revenge was a waste of time. He said exactly those words to Sue Ellen who was still obsessed with revenge. When Liz sold her brother's company to JR, Cliff lost his mind and became the same old bitter, obsessed with revenge man he'd been before. His self destructiveness cost him a chance at marriage and happiness with Liz and left him on the same situation he was in for most of Dallas - back on the outside and looking in the door again. April was the one bright spot in the waning years of Dallas. She could play a bad girl or a good girl and was equally good at both. She had a great sense of playfulness and fun about her (mainly when she was playing a good girl) that just made you feel happy to watch her. No other actress in the main cast of Dallas had ever exuded those qualities before. She also accomplished something no character in Dallas ever had before, at least not to my recollection. She had this rare ability (for Dallas anyway) of being able to find something good in almost everybody. Because of this she was simultaneously friends with JR, Bobby and Cliff! What woman in Dallas had ever managed to do that before? An added perk was she was beautiful. That beauty combined all the other attributes I've just named made her by far the best character to be added to the show in its waning years and unfortunately the rapidly declining quality of the show at that time caused her to be very underrated as a character and Sheree J. Wilson to be very underrated as an actress.