Okay, more clutching at mouth operated drink manipulation devices...
[
www.betterhealthcareproducts.com] - it's twisted, and bent, and I can't justify it any further than that...
There's also a Parson Yorick in Tristam Shandy...
Beyond this, no idea
Personally I reckon 'Yorick Kaine' might be Feste (mentioned later) - Yorick and Feste are both jesters from the works of Mr Shagdspeller, and if he was copying old characters then Yorick (in Hamlet) may even be the same ereson as Feste, just badly rewritten.
(btw, with all that fratricide and making people laugh, plus an interest in politics, are we really sure he should be a Whig? Surely he's one of the 'other' lot?)
PSD
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This is the work of an Italian narco-anarchic collective. Don't bother insulting them, they can't read English anyway.