|This article is about a/an Dopant identity in Kamen Rider W.|
- Main article: Mick
The main user of the Smilodon Memory was Mick (ミック Mikku), Ryubee Sonozaki's beloved pet blue British Shorthair, named by his son Raito (Philip). Despite being a cat, the Smilodon Memory and Gaia Driver can transform Mick into the humanoid Smilodon Dopant. He appears to be more intelligent than the average house cat, in that he appears to know that he is able to transform into the Smilodon Dopant and he knows how to transform back into a house cat at will. He is often utilized by the Sonozaki Family to deal with matters outside their estate, such as hunting down Philip and traitors, as well as bodyguard and spy. Mick also appears to favor Wakana over the other members of the family though will faithfully follow Ryubee's orders. While targeting Kyoko, the Smilodon Dopant defeats AccelTrial before Double CycloneMetal catches the cat off guard before destroying his Gaia Driver and Smilodon Memory with the Metal Stag Break Maximum Drive. After Ryubee's death, Mick is brought to live at the Narumi Detective Agency.
A copy of the Smilodon Dopant was one of eight Dummy Inhumanoids, a breed of recreated monsters created by Lem Kannagi of Foundation X, composed of the Museum Dopants and the four main Greeed. The dummy Smilodon Dopant was fought by Kamen Rider Amazon, who destroyed it with his Big Slice.