I always felt she was the one actor in the show who didn't know what she was doing. Everyone else, even Jackie Coogan as Fester, was giving it their all, and clearly knew how to act, but Loring always felt like she was just waiting for the take to be over so she could get a pat on the back and a cookie. I dunno, maybe she's better in Halloween with the New Addams Family, but I haven't seen it yet.
Really? I mean, I can tell you love the sitcom (I do too, what fan of this franchise doesn't?), but in every version, I always found Fester incredibly annoying, excluding Christopher Lloyd's take in the Sonnenfeld movies.