Sedra Hemnask
- Full Name: Sedra Hemnask
- Born: Rigel V
- Species: Zami
- Gender: Female
- Father: Voctel Thamnos
- By 2164: Director for Rigel V, Rigelian Trade Commission, United Worlds and Colonies of Rigel (ENT Novel: Tower of Babel)
- Impeached late-June 2164 due to connections with First Families, involvement in efforts to destabilize Federation/Rigelian relations (ENT Novel: Tower of Babel)