Batman: The Animated Series: 10 Best Characters Who Only Appeared In One Episode

10. Captain Clown - The Last Laugh

Captain Clown is an android clown who appears as a physical threat Batman must overcome during a battle with the Joker. The World's Greatest Detective discovers that the Joker is flooding Gotham river with laughing gas during April's Fools Day - and the Clown Prince of Crime does this with a garbage barge that spreads the vile concoction through Gotham's waterfront.

The barge is driven by Captain Clown, who is an android with origins unknown. This robot clown battles Batman on multiple occasions during the episode, proving to be more than a match for the Dark Knight.

Captain Clown nearly kills Batman during their first encounter, as Bats has no way of defeating the robot who is resistant to Batman's physical attacks. He even tries to beat the android with a metal pole - all to no effect!

This clown proves to be one of the Joker's strongest ever allies, proving to be a physical and almost invincible threat who pummels Batman with a smile. However, Captain Clown meets his untimely demise when Batman lures him into a car crusher, which results in him being crushed into a cube.

The most iconic part of Captain Clown's appearance may be how heartbroken the Joker is over his "death," as the Clown Prince of Crime yells, "You killed Captain Clown... YOU KILLED CAPTAIN CLOWN!" as he witnesses his most loyal henchmen being crushed into a cube of garbage.

God speed Captain Clown, you will be missed.