Red Ryder (aka Red Hot Ryder) is a dimwitted Sheriff voiced by Mel Blanc.
Ryder's first Appeared In Buckaroo Bugs (which is the only classic Cartoon in which Bugs Bunny is portrayed as being a full-on villain, this time as the Masked Marauder). But fails, and ends up with Bugs kissing him at the end.
He also appears in Bugs Bunny Rabbit Rampage as an enemy in the second stage. A few swift kicks (or pies to the face) will reveal his boxers, making him VERY embarrassed (as opposed to Buckaroo Bugs, where it just made him mad),
He and his horse made a quick cameo in Looney Tunes: Rabbits Run.