Mary Carney was both lovely and a good actress. It's a shame she was replaced. Kathleen Tolan, who was neither attractive nor a good actress. It was painful watching her constantly flubbing and stumbling over her lines. She had no chemistry with anyone. She probably lasted as long as she did because the show did not want to admit their mistake in hiring her. Of all the recasts among the main Ryan-family characters, KT was the worst.