Medusan

• Medusan Collective

• Unknown

• Non-corporeal

• Did not age

• None

• Energy-based lifeforms, had no physical body

• Telepathic & empathic;
• The sight of a Medusan rendered any corporeal viewer mad

• Kollos
• Zero

• Visalayan

• Do not require physical structures; they just float around
• Identify as genderless

• Members of the United Federation of Planets
• Wore a containment suit when interacting with other species