Jhonka
From Homestar Runner Wiki
Jhonka was the name Strong Bad created for the No-name Brand e-mail "impression".
Jhonka shows up in the game Peasant's Quest
The Jhonka is very rich and lives in a cave as shown in Peasant's Quest. He is deathly afraid of the Kerrek and is kind of gullible.
Jhonka vaguely resembles the character Gollum from the Lord of the Rings books and movies. This may be referred to in the Peasant's Quest game, where if you try to "give" the Jhonka something he'll reply with "Don't need nothing from no filthy peasantses!!", echoing the Tolkien character's unique style of speech.