Carl’s voice is actually a text to speech voice. That voice is also used in a character named Radar Overseer Scotty. He’s seen in the YT channel named Davemadson entertainment inc. So yeah, that is definitely Radar Overseer Scotty’s voice that Carl is using.
0:25 Blue screen of death 0:53 Yellow screen of death 1:23 Orange screen of death 1:34 Vermillion screen of death 2:34 Red screen of death 2:41 Serious red screen of death 2:57 Extreme serious red screen of death 3:03 Black screen of death 3:18 Sad black screen of death 3:36 Serious black screen of death