Sheen has tan skin, a triangle-shaped head, and dark brown hair that is usually spiked. Luckily, Sheen's wacky antics always stop Dorkus' evil plans. Sheen often leads them in strange escapades and often gets them mixed up in some strange conundrum, which only he can solve. One day, after sneaking into Jimmy's lab and disobeying Jimmy's specific instructions, Sheen touches Jimmy's new rocket and goes flying into deep space. Seuss-like planet called Zeenu , where the grand leader thinks that Sheen is destined to bring peace, prosperity and eternal joy to the planet. Moreover, the reason he commanded Libby's abduction is to lure Sheen into a battle, just because the former wants to replace the latter as the Shangri-Llama Chosen One. However, since his future self has been seen in " The Tomorrow Boys ", it can be implied that Sheen did eventually make it back to Earth.
It is unknown why he doesn't mention her in Planet Sheen or if they were even still dating at that point.
Sheen is obsessed with a superhero called "Ultra Lord". Sheen is 13 years old he got held back a few times as mentioned in "Operation Jet Fusion". However, since his future self has been seen in " The Tomorrow Boys ", it can be implied that Sheen did eventually make it back to Earth.