Seeking: Rosiers!
Claire here! I'm going to try this again :)
Evan Rosier would really, really, REALLY like to see his older brother, Tristan, who is 25 years old, a very rare Ravenclaw in a family dominated by its Slytherin tradition, and perhaps most importantly, NOT a Death Eater (though aware of his father and brother's involvement). Occupation (or lack thereof) and all the rest would be entirely open to interpretation!
It would also be amazing to see Julian & Aldrich Rosier, the twin brothers in the Inner Circle of Death Eaters -- because come on, twins are always ♥ Julian got a fork in the neck during the Halloween masquerade, and knows that whoever it was that dealt such a blow seems to have a vendetta on behalf of Florence & Jonathan Corner. Aldrich, on the other hand, has to deal with the fact that he missed being the heir by mere minutes and has three daughters but no sons. Plotty goodness? You bet!