Lolcat has been called a new language, the first language born of the internets. As with any new language, one must study it and record it. One must! Or maybe not, but anyway I recorded all the pronouns in a big sciencey amount of lolspeak from the acknowledged experts at I Can Haz Cheezbrgr, until I had a thousand pronouns*.
Lolcats don't have a standard form like hyoomins, they talk on a continuum with standard English at one end. English speakers always say I, but lolcats tend to say ai—but only 59% of the time. Another 38% of the time they say I, and occasionally even iz**. When to use ai or I is a secret known only to kittehs, but it seems to have something to do with cutitude, an important aspect of kitty pidgin.
Here are all the kitteh's Personal Pronouns:
|Subject (English I)||Object (English me)|
English you (subject or object)
And here are their Possessive Pronouns:
|1st person singular (English my)||1st person plural (English our)|
|2nd person (English you)|
*About 3/4 of my pronouns were 1st or 2nd person personals, so the numbers for the rest will just be unreliable unless someone immune to tedium does this for several million words, or I get a huge fat research grant, Not in cheeseburgers.
**(warning: geekitude!) Interesting, to me anyway, is that this doesn't seem to be a contraction of I is. It is most often generated by combining a legitimate 1st person form Iz with a copula deletion rule, so that English I am in your X → Iz is in ur x → Iz (e) in ur X → [Iz in ur X].