J-4CK was a R4 astromech droid in the service of the Galactic Republic during The Clone Wars. It was boasted as to having a "Droid-o-lantern" smile.
Behind the scenes
J-4CK was a droid purchasable in the Star Wars: Clone Wars Adventures video game. It was able to be purchased exclusively during Halloween time. J-4CK appears like the name Jack. Given that the droid was described as having a "Droid-o-lantern" smile, this is likely a reference to the real world jack-o'-lantern.
Appearances
- Star Wars: Clone Wars Adventures (First appearance)