<Li> Agatha Harkness: Agatha is initially hired by the Richards as a nanny for Franklin, and she is a witch from the Salem Witch Trials . She frequently appears as a supporting character to the Fantastic Four and their associates . </Li> <Li> Alicia Masters: Alicia is a blind sculptress, stepdaughter of the supervillain Puppet Master, and a longtime love interest of the Thing, as her blindness allows her to see the man inside rather than what he lookes like . She also has a close relationship with Silver Surfer and travels with him for some time, and she is a frequent caretaker of Franklin and Valeria . </Li> <Li> Doctor Doom: He and Mister Fantastic attended college together, and he blames Richards for an experiment gone wrong which scarred his face . As the monarch of Latveria, he is the team's most deadly foe, although he sometimes helps them, such as when he aids in the birth of Valeria Richards . </Li> <Li> H.E.R.B.I.E. (Humanoid Experimental Robot, B - type, Integrated Electronics): H.E.R.B.I.E. is a robotic ally who first appeared in the 1978 Fantastic Four animated television series before being introduced into regular Marvel Universe continuity . The original H.E.R.B.I.E. is destroyed fighting Doctor Sun . Reed Richards builds later generations of H.E.R.B.I.E.s to act as a nanny / guardian for Franklin and Valeria . </Li>

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