Lem Lemoncloak is a knight of the Brotherhood without Banners. His name stems from the yellow cloak he always wears. He is tall and has the look of a warrior.
A Storm of SwordsEdit
Lem is wandering The Riverlands with Tom of Sevenstreams and Anguy when they discover the disguised Arya Stark, who is accompanied by Gendry and Hot Pie. They convince them to come with them and head towards a nearby inn. When at the inn Arya attacks Lem and breaks his nose with a tankard, just before Harwin identifies Arya as being a noble born girl of House Stark, as he had previously been a guard in Winterfell.
A Feast for CrowsEdit
He continues serving in the Brotherhood after it is taken over by Catelyn Stark, now known as Lady Stoneheart. He seems to act as one of her primary lieutenants, as he is in charge of a party that rides through the Riverlands. He is tasked with tracking down the Mad Dog of Saltpans, which turns out to be Rorge, although he arrives too late to fight him as he is killed by Brienne of Tarth.
After the skirmish that saw Brienne kill Rorge and Gendry kill Biter Lem takes Brienne and her companions prisoner, presenting them before Lady Stoneheart who deems them guilty of sympathizing with House Lannister. Lem participates in the hanging of Brienne, Podrick Payne and Ser Hyle Hunt.