Jimmy Dazzler is a wealthy exterminator and citizen of East Ardougne featured in the Ratcatchers quest. During the quest, he tasks the player to clear a mansion full of rats without being seen by the guards that constantly patrol the area.
After the quest, he will chat about various other rat catchers. He is accompanied by his cat, Bones, who playfully runs about.
- The description of his smiles and the party is possibly reference to the main character from the book The Great Gatsby.
- His name might be a reference to "Bobby Dazzler", a Lancashire slang term for a remarkable person.