|Title || Ser|
|Allegiance || House Caswell|
|Book(s) || The Sworn Sword (mentioned)|
Ser Cleyton Caswell was a knight of House Caswell during the reign of Aerys I Targaryen.
Near the start of the reign of King Aerys I Targaryen, Cleyton was a handsome young man.
Cleyton was a suitor of Lady Rohanne Webber, a four-time widow. He attended her at Coldmoat, the seat of House Webber.