Basic Trope: A new character in a franchise created outside of the original Canon.
- Straight: Bob was created for the TV series Legends of Troperia, which is based off of the book series of the same name.
- Exaggerated: The show features loads of new characters that never appeared in the books.
- Downplayed:
- Bob was actually just a nameless background character in the books that got fleshed out for the show.
- Bob was actually an nameless regular or recurring character in the books who was given a name for the show.
- Justified:
- Alice has internal monologues frequently in the original Legends books, but she can't just be seen talking to herself all the time in the television version.
- Legends of Troperia was a Game Book series, Bob plays the role originally filled by the reader(s).
- Inverted: Bob was completely cut in ''Legends of Troperia X'', which is the sequel to ''Legends of Troperia''.
- Subverted: Bob turns out to be Robby, another character already from the books, either having gone incognito as "Bob" or just simply goes by a different nickname and is just different enough that the fans can't tell it's him until after The Reveal.
- Double Subverted: It turns out "Robby" was just an alias Bob created in the show, merely existing as a Mythology Gag to the original.
- Parodied: Alice outright states she doesn't remember any Bob from the book: "Which chapter and page were you in?"
- Zig Zagged: ???
- Averted: The show's writers create no new characters, only using ones from the book.
- Enforced:
- The execs demand the show crew create Bob to appease the younger audience watching the show.
- Some of the book's narration didn't translate well without someone for the narrator to narrate to.
- Lampshaded: "You weren't always around here, were you?"
- Invoked: ???
- Exploited: ???
- Defied: ???
- Discussed: ???
- Conversed: ???
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