Sir Lancelout is a human character in the 1980s cartoon show. He appears as the main antagonist of the episode "Sir Hefty", first seen running from knights. Hefty Smurf found him after a dragon attacked the Smurfs' village. Hefty asked Sir Lancelout if he could protect the Smurfs' village from the dragon and Sir Lancelout agreed. Sir Lancelout then goes on to manipulate the Smurfs, by constantly saying he would slay the dragon and not owning up to his word, trying to turn the Smurfs into his slaves. The Smurfs get angry, and Sir Lancelout continues to lie to the Smurfs, saying he would slay the dragon soon. When the dragon finally appears in the village, Sir Lancelout turns into a coward and runs away.