Rodzaju: According to Wikipedia, the Knave of Hearts, as seen in the books, may be a Club in Disguise.
The clubs are soldiers of the Royal court.
In the movie, he is the Red Queen’s personal assassin.
In the videogame, he is a major villain (the second boss).
Does any of this sound like Vanilla?
Last I checked I was an acquitted tart-thief.
[i]The Queen of Hearts, she made some tarts,
All on a summer day:
The Knave of Hearts, he stole those tarts,
And took them quite away![/i]
The club thing is speculation based on an illustration by John Tennel that makes the hearts look sort of like clubs when the narrative doesn`t mention it at all. And apparently nmillar already mentioned all of this.