Tom & Jerry - is a bluish-grey housecat, depending on the short (his fur color is close to that of the Russian Blue breed of cats), who lives a pampered life, while Jerry is a small brown mouse who always lives in close proximity to him. Tom is very quick-tempered and thin-skinned, while Jerry is independent and opportunistic. Though very energetic and determined, Tom is no match for Jerry's brains and wits. By the iris-out of each cartoon, Jerry is usually shown triumphant, while Tom is shown as the loser. At times, Tom triumphs, both characters lose, or Tom and Jerry end the cartoon as friends. Both characters display sadistic tendencies, in that they are equally likely to take pleasure in tormenting each other. However, depending on the cartoon, whenever one character appears to be in mortal danger, the other will develop a conscience and save him.