Othmar the Grouch
From Muppet Wiki
Othmar the Grouch is a Grouch from the seventh moon of the planet Zurkon. Oscar the Grouch meets Othmar when he visits Earth in his trash can space vessel.[1] Olivia provides a countdown for the pair's launch to the Moon, a location Oscar's pet worm, Slimey, would later visit.
Oscar had previously been sent a holographic message from Lothar, another Grouch from the seventh moon of Zurkon.
