Candy is the first one to greet George and Lennie when they arrive on the farm in John Steinbeck's novel Of Mice and Men. Candy is described as an "old swamper," which is a term for a ranch worker who does odd jobs. Readers first see him sweeping the bunkhouse. Later in chapter two, he is cleaning the washroom.
Candy is very old. He's lived his whole life as a ranch worker and doesn't have much of anything to show for it. He is straightforward and honest in his dealings with George and Lennie. George is suspicious when he sees a can of bug or rat killer on the beds that Candy points to them. He thinks Candy is giving them the worst bedd, possibly lice-infested ones. Candy could have used the opportunity to torment them or be mean, but he doesn't. Candy explains that the guy who left the can was fastidiously clean. When George inspects the bed, he finds what Candy says to be true. Candy also seems to be respectful and concerned with making sure George and Lennie know that he wasn't eavesdropping on their conversation after they meet Curley.
Candy is very thin and missing a hand. He lost the hand in a farm accident, and it is a significant handicap to be a ranch worker without a hand. Candy also has a dog, a very old do, who probably should be put down, but Candy can't bring himself to do it. This shows his tender heart. Here is the description of Candy's dog:
The old man came slowly into the room. He had his broom in his hand. And at his heels there walked a dragfooted sheepdog, gray of muzzle, and with pale, blind old eyes. The dog struggled lamely to the side of the room and lay down, grunting softly to himself and licking his grizzled, moth-eaten coat. The swamper watched him until he was settled. "I wasn't listenin'. I was jus' standin' in the shade a minute scratchin' my dog. I jus' now finished swampin' out the wash house."