This Thaddeus Valentine vinyl figure is released by Funko in their POP! Movies x Mortal Engines vinyl figure series.

Funko POP! is a crossover vinyl figure series by Funko and other famous franchises such as Disney, Pixar, DC Comics, Marvel Comics, Simpsons, South Park, Uglydoll, etc. Each POP! figure is about ~3" to ~5" tall and crafted in a Japanese anime/manga super-deformed style (NOTE: due to the unique design of each character, the actual size of the figures may be smaller or bigger than stated).

The POP! Movies x Mortal Engines series features characters from the post-apocalyptic adventure film that is set in a post-apocalyptic steampunk world where entire cities have been mounted on wheels and motorised, and prey on one another. The film follows Tom, a twenty-something Londoner who has only ever lived inside his travelling hometown, and his feet have never touched grass, mud or land. His first taste of the outside comes quite abruptly: Tom gets in the way of the masked Hester's attempt to kill Thaddeus Valentine, a man she blames for her mother’s murder, and both Hester and Tom end up thrown out of the moving "traction" city, to fend for themselves.