hmmm Catgirls....
Well I see Nukunuku there, as well as the Puma sisters even Pink. There's
Merle , but I suppose
someone already suggested her, Botan (YYH) sometimes turns into a cat and
so does
Hikaru (never could understand the joke behind those.) Ryouko sometimes
acts as a cat (not sure if she isn't part cat, I mean she's related to
Ryo-ohki right?) there's Luna  who turned human right? (Ikami, my brother
doesn't agree with me on this one.)(Ikami: no shit!)(insert various sounds
of intense violence here.) Felicia from Dark stalkers would also be a good
bet. Then theres the villain in Bakuretsu EtoRangers (forgot her name
sorry) How about Ranma, she turns to a cat...right?  hope that helps
Hentais...
There's Kuno, Mai's Grandfather, Yosho (he did grope Ryouko's breasts in
the OAV), Hiroshi and Daisuke, Mamoru Kusanagi (Blue Seed), Touji Suzuhara,
Kaji
and Kensuke from NGE, Rei Hino's Grandfather (sailormoon) Banpei from New
Cutey Honey, Dark Shnieder from Bastard, the guy from New Angel (damn can't
remember his name) Wataru from End of Summer.