Edgar is a character in Shakespeare's "King Lear," and is Gloucester’s older, legitimate son. Edgar plays many different roles, starting out as a gullible fool easily tricked by his brother, then assuming a disguise as a mad beggar to evade his father’s men, then carrying his impersonation further to aid Lear and Gloucester, and finally appearing as an armored champion to avenge his brother’s treason. Edgar’s propensity for disguises and impersonations makes it difficult to characterize him effectively.