Courage The Cowardly Dog

Courage finally makes use of his greatest talent that developed from his constant fears and all his horrifying misfortunes. Instead of employing the items he usually keeps in his fur, he screams at his enemies with all his might to defeat them.

In his previous appearances, Le Quack's voice was done by Paul Schoeffler. In "Ball of Revenge," Mary Testa had the roll of Le Quack. However, Paul did have a roll in this episode, he did the voice of Katz, which he's always done.

In "The Duck Brothers," Ringo Starr was the voice of the Duck Brothers. In "Ball of Revenge," the Duck Brothers were done by Samuel Vincent (one of them) and Jess Harnell (one of them). However, Ringo did have a roll in this episode, he did the voice of the alien in "Courageous Cure," who was a scientist.

In "Cajun Granny Stew," Jim Cummings did the voice of the Cajun Fox. In "Ball of Revenge," his voice is done by John R. Dilworth.

In "Freaky Fred," Paul Schoeffler did the voice of Fred. In "Ball of Revenge," his voice is done by Ian James Corlett.

The last appearances of Katz, Le Quack, the Cajun Fox, Fred, the Weremole, the Duck Brothers, the Gangster Foot, and the Queen of the Black Puddle.

The Cajun Fox mentions how Courage cooked him in "Cajun Granny Stew."

The Big Toe on the Gangster Foot mentions how Courage licked them and got rid of them in "The Clutching Foot."

Out of all the villians in "Ball of Revenge," Katz is surprisingly the only one that has never been to the Bagge farmhouse. This could also go for the Weremole, because he wasn't actually in the house in "Night of the Weremole," but he was right outside of it.

Villains in "Ball of Revenge": Queen of the Black Puddle / Eustace / Katz / Kajun Fox / Le Quack / Weremole.

Eustace said, "Courage" for only the second time in "Ball of Revenge." He said it the first time in "The Hunchback of Nowhere."

The second time appearances of the Weremole, Queen of the Black Puddle, Cajun Fox, the Clutching Foot, the Duck Brothers, and Fred.