Hope

The character design people were lazy on Hope and Marcella. Basically the same base was used for both, but Marcella was given a mole. Many viewers just assumed they are sisters. They're not, they're just drawn that way.

Hope and Marcella are dark skinned and exotic. Their genetic heritage isn't clear. It may include some black and Asian.

Their exotic looks used to get Hope and Marcella entered into the discussion of who is the hottest fuck among the Middleton cheerleaders. Not that either was great at sex, but because it was such a thrill to screw them. Marcella is now out of the discussion, but Hope is still very popular at orgies.