It is hinted at throughout the series that Rawls is a closeted homosexual.

His presence is hinted at several times throughout most of the game, but he only appears in person towards the very end of the final chapter.

It is hinted throughout the series however that Sam's mom knows something about her husband's previous, heroic lifestyle.

It is also hinted throughout the game that the character Ayako is their daughter.

Stick then admits that he is homosexual, as has been hinted throughout the movie.

The visions are presumably influenced in part by her vampire heritage; this is hinted at a few times throughout the first two-thirds of the story.

It is hinted throughout the anime that he develops feelings for her.

It is also hinted throughout the series that she's attracted to older, intelligent men.

Matilda's true identity is hinted at multiple times throughout the novel:

She seems to have 'forgotten' something which Takaomi wants her to remember from her childhood, which has been hinted throughout the series several times.