DC Database
The subject of this article has been mentioned only and never actually shown in a comic book or on-screen. Despite their lack of physical appearances, information about them might still be relevant or interesting or at least worthy of documentation. Anything known about them is to be considered second-hand information.

[...] The mayor wouldn't wipe his ass without permission from people like Rupert Thorne.
Anarky src

Rupert Thorne is a mobster in Gotham during Batman's early career.

Thorne is never directly interacted with by Batman but the mobster's name is pinned on a chalk board in the GCPD Headquarters.

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Footnotes