Lord Tyrin (or Lord Taran) is a character from He-Man and the Masters of the Universe.
Lord Tyrin and his companion Lady Valtira are a noble couple who used evil magic to drain the life energy from the trees in the forest. Two hundred years ago, when there were no trees left around their castle to sustain them, they fell into a deep slumber so that the trees could regrow and the rest of the world would forget about their wicked deeds.
The two nobles awakened from their slumber when Prince Adam and Teela ran across their castle. When Lady Valtira met and attempted to enslave Adam, Lord Tyrin became jealous and tried to capture Valtira and Sago with his mechanical spider, but Adam turned into He-Man and thwarted his plan. Tyrin ran into Teela while she searched for Adam in the castle, and trapped her in a spiderweb to lure Valtira and He-Man to him. Soon after, he confronted Valtira again, telling her that calling upon the power to rebuild their kingdom had warped him. She told him that they needed friends rather than slaves, but Tyrin was still angry at He-Man and absorbed the energy from a vine that was holding the castle together. The two nobles fled from the collapsing castle with He-Man and Teela, but Tyrin ran back inside and saved Sago with He-Man's help. Tyrin was remorseful and renounced his power when he thought that He-Man had been buried alive, and Valtira did the same. Smashing their amulets restored their youth, and they bade their new friends Adam and Teela farewell as they rode away on pegasi.