Ryman Frey is a grandson of Walder Frey, the eldest child of Ser Stevron Frey, Walder Frey's eldest child and heir to the Twins. He has three sons, Edwyn Frey, Black Walder Frey, and Petyr "Pimple" Frey. Ryman is a fat greedy drunk with a bad belly.
When his father dies from a wound received at Oxcross, Ryman becomes the new heir to the Crossing.
During the Red Wedding he kills Dacey Mormont with an axe. He then leads 2000 Frey men to assist the siege of Riverrun.