Yes indeed, Terry, it is Kevin Kline (although not on all versions — there’s something like four or five, all told) playing the scoundrel on “Disco Clone.” Two years ago, Cristina explained this weird collaboration thusly:

“We tried every sort of man we knew about town, but they all turned into pussycats in front of the microphone. And then I talked to Kevin Kline, who was, at that point, playing Bruce Granit in On the Twentieth Century on Broadway, and probably needed the cash. I nipped backstage and said, ‘Would you like to make some money, and do this Macheath-esque vocal on a disco record?’ He agreed.”

You can read my complete liner notes on this fascinating woman (who is still around — she sings on the most recent Ursula 1000 album) here. They explain in greater detail why “Is That All There Is?” was yanked from the stores.