Verdemann is a defense attorney based in Düsseldorf who made his reputation getting people acquitted—most notably his own father, though that victory came with a bitter twist. His dad died in prison years before being officially exonerated, something Verdemann clearly carries with him. He gets pulled into Tenma's case after residents hire him to help when Tenma's arrested in Prague.
He's married and becomes a father during the series, which adds another layer to his character. Fans often note that he's oddly fond of "Over the Rainbow" from The Wizard of Oz—the kind of detail that sticks with people.
The real complexity comes later when Verdemann discovers his father's old notes, and they suggest the old man might've actually been guilty after all. That revelation sends him down a rabbit hole with detective Suk, both of them chasing the truth about a mysterious author named Franz Bonaparta. For Verdemann, it's personal—finding out about Bonaparta is tied to finally understanding who his father really was.
Content compiled by AnimeList.moe from publicly available sources.