Graham/Introduction
Graham started off life as a Teen Genius and was put through Wizarding School. Traditional training has lent its mark, and so he outwardly favors the Good Old Ways and is absolutely a member of the Genius Book Club. This kind of history always ends up with some form of specialization, and his is language. When combined with the above, he ends up coming off as the Cunning Linguist with the occasional bout of Sesquipedalian Loquaciousness.
What should amount to an Insufferable Genius (and did, for a while) is backed off by a series of losses of the Friendly Target variety: Taking You With Me, Forced To Watch, and an Act of True Love all feature in this vein.
In the end, he's constantly striving to be a Gentleman and a Scholar, and often (by circumstance rather than effort) doubles as Team Dad.