Robin Hill

Robin Hill is an unseen character in Game of Thrones. He is not expected to appear in the show, being long dead by the time it begins.

Biography
Robin Hill was a bastard from the The Westerlands. At some point he joined the Night's Watch, and eventually rose to become its Lord Commander. The Watch nearly collapsed under his leadership, and history remembers him as one of the worst Lord Commanders the Black Brothers ever had.

In the books
In the A Song of Ice and Fire novels, Robin Hill's history is the same.