WMG / Val and Isaac

Both Mel and Iris's partner come from the same planet.

It is possible that both of them had their arms removed as infants and were sent to other planets. Why this happened is yet to be discovered.

Mel used to wear glasses because her eyes are adapted to underwater life.

She either had surgery later or wears contacts, like Merial of Skin deep

Zuri's greatest and most shocking secret is that she's married.

She doesn't talk about her significant other(s) to keep them safe from her enemies - and because the dictators and corrupt politicians of the universe are fine with committing every vice *except* adultery.