[quote=Otaku95]
Completely random, but could anyone name some male tsundere characters in anime? I'd like some inspiration for a RP.
[/quote]

Hajime Iwaizumi from Haikyuu!!, though he's a minor character thus far: "he often resorts to violence with Oikawa but does care a lot for him," lol. 

Can check [url=http://tvtropes.org/pmwiki/pmwiki.php/Tsundere/Anime]this[/url] out, too.