Richard Burton & Jack Elam offered the same part

Here's a belated Friday Question time:

From Chris Andelman:

My question is about writing episodes for guest actors. Do you ever sign them first and then write with them in mind?

Yes,
but not always. The CHEERS staff had an idea for a character they
thought would be great for John Cleese. He liked the idea and agreed to
played it. Peter Casey & David Lee then wrote a brilliant script.