PLAYED BY: Ellen Geer
SPECIES: Human Female

Xenologist who spent over 30 years studying the Crystalline Entity, after it killed her son. When she encountered the entity in 2368, she shattered it along with her scientific career.
 

PLAYED BY: Susan Diol
SPECIES: Human Female

Starfleet engineer who was helping to design the expansion of the Federation colony on Melona IV in 2368 when the outpost was destroyed by the Crystalline Entity. When the Crystalline Entity attacked, she was killed while trying to help other colonists evacuate.