A famous fairy who was said to haunt Caterhaugh Wood in England. He supposedly lured young women away to ruin them. He was once a human who had been trapped by the Fairy Queen. A young woman named Janet is said to have fallen in love with him at one point, and finally managed to free him.
Tam Lin is encountered early on in the final dungeon, where his respective palette swap (with a complimentary skillset), Cu Chulainn, is also frequently encountered.
Persona 3 Portable
While Tam Lin does not appear in Persona 3 or Persona 3 FES, he appears as a new persona of the Lovers Arcana in Persona 3 Portable. He starts out at level 13, and can be gained through Shuffle Time draws.
Persona 4
Tam Lin is a Persona of the Sun Arcana in Persona 4 and remains the only palette-swapped Persona remaining in the game. His fusion prerequisite requires the protagonist to perform a cross-spread fusion using, Gdon, Phoenix, Narasimha, and Yatagarasu in the Velvet Room.
Devil Summoner 2: Raidou Kuzunoha vs. King Abaddon
"A faerie knight from Scotland. As a member of the Seelie Court, he is charged with protecting Caterhaugh. Originally a child from the area, after being kidnapped by the kaeries at age nine, he took up their ways."
—Devil Survivor 2 Compendium
Tam Lin first appears as a formidable foe during Joe's contract battle, easily being the biggest obstacle then.
Persona 4 The Animation
In Persona 4 The Animation, Tam Lin represents the bond between Yu and Ayane Matsunaga. He was summoned during the battle against Kunino-sagiri in Heaven to rescue Nanako, albeit Yu was under the possession of Kunino-sagiri. He unleashed a powerful Ziodyne attack that delt serious damage to Jiraiya and Yosuke.
