Helen

* Character:
** Helen, a Vault City citizen and patient of Dr. Troy, mentioned in Fallout 2.
** Helen Marks, a surgeon who resided in Vault 51, mentioned in the Fallout 76 update Nuclear Winter.
*** Helen Marks & Reuben Gill - 20780803, a holotape found in Vault 51 in Fallout 76.
* Real-life people:
** Helena Wickberg, a developer who worked at Interplay Entertainment as an artist on Fallout.
** Helen Forrest, a female jazz vocalist during America's Big Band era, whose performance of "Mad About the Boy" was used in Fallout: New Vegas.