Ych'a
- Full Name: Ych'a
- Species: Vulcan
- Gender: Female
- Husband: Denak ( - 2155 - 2156 - )
- By 2135: Field agent, V'Shar (ENT Novel: Kobayashi Maru)
- By 2155: Subcommander, field agent, V'Shar (ENT Novel: Kobayashi Maru, Beneath the Raptor's Wing, To Brave the Storm)
- August 16, 2156: Taken into custody on suspicion of involvement in bombing of Mount Seleya (ENT Novel: To Brave the Storm)