“A Dolly for Sue (as she calls herself)” is a seemingly normal girl rag doll with red hair and a red gingham (checkered) dress. Her misfit problem is never explained on the special, but was revealed on NPR’s Wait Wait… Don’t Tell Me! news quiz show (broadcast December 8, 2007). The show revealed that Rudolph’s producer, Arthur Rankin Jr., says Dolly’s problem was psychological, caused from being abandoned by her mistress and suffering depression from feeling unloved.
not trying to dispute your strip, just wikied rudolph to jog my memory and thought I’d share the interesting info I found