Matrim Cauthon, usually called just Mat, is one of the main characters of the series. He is a powerful ta'veren, although not as powerful as Rand al'Thor.
Mat is 5'11" or 180 cm tall and weighs 170lb or 77kg. He is described as long-limbed and wiry. He has brown eyes, which often twinkle with mischief, and brown hair that is long enough to reach his coat collar.
Mat's appearance varies throughout the series as his sense of fashion changes. He wears clothes typical of the Two Rivers for the first few books, but gradually dresses more flamboyantly as the series progresses. After his encounter with the Eelfinn in Rhuidean, he gains a hanging scar, which he hides by use of a kerchief. Shortly afterwards, he starts wearing his signature wide-brimmed black hat which he obtains from Hadnan Kadere. In Ebou Dar, he finds many of his clothes replaced on the orders of Queen Tylin with outfits suitable for a "pretty". Although he chafes at being dressed up like a fancy Lord, he also becomes accustomed to it and develops a taste for wearing "a little lace".
Later, after his last encounter with the Finn, he is disfigured by the removal of his left eye.
Mat is often described as lazy, roguish, immature, tactless, and brazen. He is not afraid to flout any and all authority figures around him, and typically tries whatever he can to shirk responsibility and work. For example, when he first discovered his ta'veren nature, he attempts as best he can to avoid his role in the Pattern, and only reluctantly accepts what he needs to do. However, he is also extremely steadfast and loyal, and has learned over time not to shirk from his duties, no matter how much he might grumble about it. He is also extremely pragmatic, shirking possessions or clothing that is not practical or useful. He enjoys gambling and drinking, as well as pursuing women, though he is careful never to pursue one who isn't open to his attentions. This love of gambling extends to a love of tactics, as Mat views battles as being the ultimate gamble. He is also extremely derisive of nobles or anyone with a "high-born" heritage, believing that, as a general rule, they all lack common sense.
Though he matures somewhat over the course of the story, Mat's core personality remains largely intact throughout his trials and challenges. By the time the Last Battle ends, he is still fond of virtually everything he was fond of when he first set out into the world (though, as a married man, he has reluctantly conceded to giving up his hobby of pursuing women). The only thing that appreciably changes about him is his attitude towards work and duty; he is still not fond of either, but will now typically accept both with a resigned attitude, particularly when it comes to commanding armies.
Mat's most obvious non-personality trait is his extraordinarily good luck. His ta'veren nature causes virtually every situation that depends on chance to work out in his favor, from dice to cards to avoiding random assassination attempts by inadvertently moving at the right time. This trait is so extreme that he was able to pick out directions for the seemingly impossible corridors and intersections of the Aelfinn and the Eelfinn realm by tossing dice or spinning in a circle and randomly stopping. An additional aspect of this trait is that he seemingly 'senses' the onset of important decisions or events soon to occur. This sense, referred by Mat as "the bloody dice rolling in my head," has frequently helped him to identify important aspects of his life and act accordingly, best demonstrated in his handling of Tuon.
Mat is a peerless tactician. Aided by memories collected by the Aelfinn and Eelfinn from generals that entered the lands of the Aelfinn and Eelfinn between the Trolloc Wars and the War of a Hundred Years, his tactical acumen is such that no army under his command has ever suffered a defeat, no matter what the odds seem to be. His greatest triumph on the battlefield was his defeat of the armies of the Shadow under Demandred's command during the Last Battle. Despite being almost hopelessly outnumbered by the Shadow and almost hopelessly overpowered by Demandred himself wielding Sakarnen in a full circle of seventy-two, he managed to rout the forces of the Shadow completely through brilliant planning, mental flexibility, and his trademark luck.
At one point, Mat refers to having "four sisters" willing to tattle on him when he was up to any mischief. This can be regarded as an error, however, as he also refers only two sisters, Eldrin and Bodewhin, in the same context in the next book. Furthermore, no other sisters are ever mentioned in the series, even when other members of his family are kidnapped by Whitecloaks and the book Glossary and The Wheel of Time Companion seem consistent in this fact in the relevant entries.
- Main article: Mat Cauthon/Chronology
- The Fox that makes the Ravens fly
- The Trickster
- Prince of the Ravens
- Raven Lord
- Lord of Luck
- Marshal General
- Son of Battles
- Lord Crimson
- One-Eyed Fool
- Battle Lord
- Horn Sounder (formerly)
- Horn Blower
- Tylin's Toy
with the fox that makes the ravens fly.
Luck his soul, the lightning his eye,
He snatches the moons from out of the sky.."
— Quoted by Jain Charin aka Jain Farstrider alias Noal Charin
— Quoted by Tylee Khirgan, Seanchan Banner-General
— origin unknown
Mat's fighting skills
Within the course of the books we see Mat in many fights and his skill with his quarterstaff is shown as exemplary, though it is rarely commented on. The fact that Mat, while exhausted and weak, simultaneously defeated Galad and Gawyn, both considered exceptional swordfighters, and later Couladin of the Shaido clan (who is considered a fierce fighter, even among the Aiel) in single combat, shows that his skill in combat is above that of even the average blademaster, though he cannot be called a blademaster since he does not use a sword. The weapons he uses are the quarterstaff and later the ashandarei, the latter weapon being supplemented with knowledge from the Eelfinn memories on how to use it properly. Mat is also a very proficient knife fighter and can throw them with incredible accuracy, being able to fight off numerous assailants armed with swords and other mid-range weapons. A key facet of his fighting style, in addition to his natural luck, are his incredible reflexes, as seen best when he caught a knife thrown by the gholam out of the air.
He is described as being an indifferent rider before he has visited the Eelfinn, but after that he rode as he was born on a horse's back. 
- Main article: Mat Cauthon/Parallels
In the television series
- In the television series, Mat Cauthon is played by actor Barney Harris in the first season, and Dónal Finn from the second season onward.
- The Eye of the World, Chapter 1
- The Wheel of Time Companion, Matrim Cauthon
- The Fires of Heaven, Chapter 51
- The Wheel of Time Companion, Bodewhin Cauthon
- The Wheel of Time Companion, Eldrin Cauthon
- The Dragon Reborn, Chapter 24
- The Shadow Rising, Chapter 13
- Crossroads of Twilight, Chapter 28
- Knife of Dreams, Chapter 4
- Towers of Midnight, Chapter 57
- The Fires of Heaven, Chapter 20