Actors who look like other actors

It struck me as odd that much of the cast of this film resembled other '80s actors. Maybe it's just a coincidence, but:

Todd Barrett looks like Jon-Erik Hexum
Brett Wilson looks like Andrew McCarthy (with a little Anthony Michael Hall thrown in)
Miles O'Keeffe looks like Lorenzo Lamas
Kathleen Wilhoite looks like Joan Cusack
Kim Delaney looks like Ally Sheedy
Morgan Fairchild looks like Bea Arthur (just kidding)

Anyone else see the resemblances?