Link

Link is the main character of The Legend of Zelda series and the playable character in nearly every game of the series. He is often shown wearing a green tunic and uses a sword and shield for his main weapon in nearly every game he appears in. In almost every incarnation, the mark of the Triforce appears on his hand, showing that he has the Triforce of Courage.

Link often starts out as a character with little to no extraordinary traits, as a regular Hylian who happens to end up awakening as the chosen hero. Often times Link, guided by the player, must endure a series of trials throughout the game before they become the hero. No matter the beginnings, all Links are cut from the same cloth, and will always embrace their destiny for the sake of others.

History
Seen side by side, you can tell that the many Links do not look all that different from each other. He is often seen in as a young adult, although it is not rare to see him portrayed as a child as well. Common techniques used by Link include the Sword Beam and Spin Attack.

The Legend of Zelda
Link is an unknown youth who travels through the Kingdom of Hyrule. Link seeks out the Triforce of Wisdom to defeat Ganon.

Zelda II: The Adventure of Link
A young man who has the mark of the Triforce appear on the back of his hand. He solves the mystery of the Great Palace, obtains the Triforce of Courage, and awakens Princess Zelda.

The Legend of Zelda: A Link to the Past
Link is a descendant of the Knights of Hyrule who guard the royal family, and he lives with his uncle. He defeats Ganon with the Master Sword and wishes for the Triforce to return things as they were. Afterwards, he sets out on a journey of training.

The Legend of Zelda: Link's Awakening
A young man out on a ship. It runs ashore on Koholint Island in a storm. Link is caught up in an adventure to save the Wind Fish.

The Legend of Zelda: Ocarina of Time
In this game, Link is seen in both his child and adult iterations. He is born to a Hylian family during a time of war. During the war, his mother was driven from their home and, clutching her baby, fled into the Kokiri Forest. The Great Deku Tree proclaimed that Link was fated to save Hyrule, and Link was raised as a Kokiri in the Kokiri Forest. Link sets out on a journey with the fairy Navi and becomes the "Hero of Time" who carries the Triforce of Courage. After seven years of sleep, Link battles Ganon with the Master Sword in hand. Link defeats Ganon and returns to his original time. This is also the debut of Link's horse, Epona.

The Legend of Zelda: Majora's Mask
This Link is the same Link as in The Legend of Zelda: Ocarina of Time. After Link returns to his original time with the Triforce of Courage, he strays from Kokiri Forest into a parallel world called Termina while searching for Navi. He saves Termina, along with the help of the fairy Tatl. Some sources say that after his death, he becomes the Hero's Shade in The Legend of Zelda: Twilight Princess.

The Legend of Zelda: Oracle of Seasons and The Legend of Zelda: Oracle of Ages
Link is a young boy who is guided to Hyrule Castle, where the Triforce transports him to the distant lands of Holodrum and Labrynna. He thwarts Twinrova's attempts at fully reviving Ganon. Afterwards, he sets sail for training.

The Legend of Zelda: The Wind Waker
Link is a boy who grew up on Outset Island. He lives with his grandmother and his younger sister, Aryll. Link boards a talking boat, the King of Red Lions. He obtains the Triforce of Courage, which had sunk to the bottom of the Great Sea, and battles Ganondorf, earning the title "Hero of Winds."

The Legend of Zelda: Four Swords
Link is a young boy who, using the Four Sword, splits into four versions of himself to defeat the demon Vaati.

The Legend of Zelda: Four Swords Adventures
Link is a childhood friend of Princess Zelda, who uses the Four Sword to split into four and defeat Vaati and reseal Ganon.

The Legend of Zelda: The Minish Cap
Link is a childhood friend of Princess Zelda and an apprentice blacksmith. Link ends up wearing Ezlo, a Minish who was transformed into a cap, on his head. Wielding the Four Sword, he battles Vaati to save Princess Zelda. In the end, Ezlo gifts Link a green cap shaped like himself.

The Legend of Zelda: Twilight Princess
Link is a ranch hand from Ordon Village, who is fascinated by swordsmanship and horse riding. He inherits the Triforce of Courage. He ends up transforming into a wolf. With help from Midna, princess of the Twilight Realm, Link obtains the Master Sword and defeats Ganon. He returns to Ordon Village with the children of the village.

The Legend of Zelda: Phantom Hourglass
Link is the same Link from The Legend of Zelda: The Wind Waker. Link gets caught up in the mystery of a Ghost Ship. Link goes on an adventure with the fairy Ciela, the Spirit of Time and Courage, which unfolds in the Temple of the Ocean King. In real time, Link's adventure only lasts ten minutes. Afterwards, Tetra's pirates discover a new continent. It is unclear whether Link settles there.

The Legend of Zelda: Spirit Tracks
Link is an engineer in training. Riding on the Spirit Tracks, Link defeats the Demon King Malladus with the help of Princess Zelda's disembodied spirit. Link ends up becoming an engineer as planned, but also a swordsman to help protect Princess Zelda.

The Legend of Zelda: Skyward Sword
Link is a student of the Knight Academy. Link is a childhood friend of fellow student Zelda, who plays the part of the goddess Hylia for that year's Wing Ceremony. Link is chosen by the goddess Hylia. He tempers the Master Sword, guided by Fi, the spirit of the sword, and seals away Demise. He decides to settle on the surface of Hyrule.

The Legend of Zelda: A Link Between Worlds
Link is an apprentice blacksmith. Utilizing his ability to go inside of walls, Link recovers the Triforce from Lorule.

The Legend of Zelda: Tri Force Heroes
Link is one of three heroes who goes to Hytopia. Link becomes the legendary Tri Force Hero, lifting Lady Maud's curse on Princess Styla.