Twilight Cage Pirates

The Space Pirates are the Nocturnus Clan's rebels. They like the excessive space in the Twilight Cage, and are thus causing havoc to be banned from the Nocturnes plan to go back to Sonic's World. You encounter them in the game when you take the N'rrgal shipment to Kron, the Kron shipment to the Zoah, the Zoah shipment to the Voxai, and the Voxai shipment to the N'rrgal. They also have a speech impediment, which Rouge makes fun of, demonstrated as below

Rouge ~ "This is stupid." Sonic ~ "Who knows, just go with it." A couple dialogs later... Rouge ~ "Seriously, why would a Pirate from another dimension talk like that?" Pirate ~ "Aye, a speech impediment it be."