The Cluster Ambassador was the ambassador of The Cluster, resembling a massive mechanized beetle. He tried to convince Jenny to join the Cluster and enslave humanity, but she adamantly resisted. The Ambassador didn't take this lightly and made his move by trying his best to take her by force, but he was eventually destroyed. He had the ability to reassemble his broken parts no matter how many times Jenny dismantled him. His body temporarily took control of Tuck when his head retreated, and Tuck was later able to exploit his weakness (the "off" button on his back) as he shared minds with the robot.

He is voiced by Wally Wingert.