As seen so far, Mimic's true appearance is unknown. However, tiny glimpses of it can be spotted. In addition to possessing a dark coloration, he has suction cups on his hands, white eyes with black sclera, and a wrinkly mouth.
Mimic was once part of a team. He later became a mercenary and helped Dr. Eggman destroy his own team. Mimic continued his mercenary ways and eventually crossed hairs with the Diamond Cutters. He eventually managed to kill every single one of them except for Whisper the Wolf, but this was unknown to him.
Tangle & Whisper
Mimic resurfaced once more to wreak havoc with his shapeshifting powers in the form of Sonic the Hedgehog. This included graffiti, stealing candy from babies and disturbing Chao. During this time, Mimic was also looking for Whisper, as he had discovered that she had survived his attack.
When the two came face-to-face, Whisper discovered that not only was Mimic targeting her but he was targeting Tangle the Lemur in Spiral Hill Village as well. Whisper gave chase to Mimic in the village while he still continued his Sonic facade. Whisper attempted to shoot Mimic from the rooftops but Mimic took advantage of his Sonic form to talk to a star-struck villager so she would stand in the way of Whisper's shot. Mimic soon tried to creep off but was suddenly greeted by Tangle, who wanted to know why Whisper was shooting at him. Mimic lied to Tangle that Eggman had placed a mind-control chip inside Whisper's mask scope, forcing her on a rampage, and he could not bring himself to hurt her. Tangle thus took it upon herself to stop Whisper, leaving Mimic pleased. Whisper soon took aim at Mimic again, only for him to shoot her a sinister grin. As Tangle tackled Whisper, Mimic left the scene. After the commotion between the two, Tangle and Whisper headed to the Mineral Museum and Mimic watched them in the form of the villager he talked to earlier. Mimic soon went to the museum and left a note for Whisper to meet him so that they could end things once and for all.
To match his shapeshifting abilities, Mimic is an untruthful person. He does not like causing much of a scene, relying on tactics to undermine and trick others into doing what he wishes. He is quite sinister and unapologetically violent in nature.
Powers and abilities
Mimic has the ability to shapeshift into whoever he pleases. Though he is able to look nearly identical to the person he shapeshifts into, notable differences include darker eye colors and darker shades of fur, skin and clothing. Mimic's suction cups on his gloves are also still visible when he shapeshifts.