What is the name of the cousin to the Looney Tunes character Speedy Gonzales?

Slowpoke Rodríguez is a fictional animated cartoon mouse, part of the Looney Tunes' cast. His voice was provided by an uncredited Tom Holland.

He is described as "the slowest mouse in all Mexico" from the countryside of Mexico, and is a cousin to Speedy Gonzales, who is known as the fastest. However, he mentions to his cousin that while he may be best known for his slow feet, he's not slow in "la cabeza" (the head). He speaks in a monotone voice and seems to never be surprised by anything. While he is the slowest mouse in all of Mexico, he has been shown to have certain other (more extreme) methods of protecting himself.

Slowpoke only appeared in two cartoons alongside his cousin. The first, "Mexicali Shmoes" (1959), ends with two lazy cats, Jose and Manuel, the former learning the hard way that Slowpoke carries a gun (though the gun bit has been edited out of this cartoon in recent years). The second, "Mexican Boarders" (1962), revolves around Speedy trying to protect Slowpoke from Sylvester the Cat, but in the end, Slowpoke demonstrates his ability to hypnotize Sylvester into becoming his slave.