^ Is that letter for real? It's well known that William and Vivian hated each other, but they kept it professional on set. William was well known for being a difficult alcoholic- that letter looks like proof of that. Desi asking for another actor? Seems odd. Anyway, I thought William was awesome in
I Love Lucy. Vivian didn't do much for me. She was younger than Lucy, but (I believe) asked to gain weight and play an older woman. She was 22 years younger than William. She turned down an opportunity for a spin off with him because she didn't want to work with him.