- The Cameo: Character actor Jon Lormer, as the Old Man who provides the episode Title Drop.
- Deleted Role: According to a call sheet, Dick Geary appeared as a security guard in this episode, but it seems his appearance ended up as a deleted scene.
- Prop Recycling:
- What Could Have Been: In an early story outline, it was Scotty who was ill.
Trivia / Star Trek S3E8 "For the World Is Hollow and I Have Touched the Sky"