Thursday is an All Purpose Robot created by Jennifer at the age of 5 and a playable character in Disgaea: Hour of Darkness. Working with Jennifer and Captain Gordon, Thursday joins them on their mission to the Netherworld to defeat the Overlord and prevent an alleged invasion of Earth. When their ship crashes in the Netherworld, leaving them stranded and separated from Captain Gordon, Jennifer and Thursday join Laharl's group in order to find Gordon.
Despite being a robot, Thursday is kind, sincere, and sarcastic. He's very calm in difficult situations or when dealing with various obstacles and usually begins or ends his sentences with 'BLIP BEEP'.
He also appears as an NPC in Disgaea 2: Cursed Memories and as a DLC playable character in Disgaea 3: Absence of Justice.