Randall Marijuana's Cat/C-Socks
From Blaseball Wiki
Socks is a cat with more than a passing resemblance to Chicago Firefighters batter Socks Maybe. The fact that Socks Maybe's exact color and markings are a source of confusion may make it hard to tell if Socks-of-the-Cafe is Socks-of-the-Chicago, but last we checked both Socks were a matching orange / white with black spots / calico / russian blue / perfectly normal cat color.