| Universe : | Prime Timeline |
| Name : | Tantalus Mental Facility |
The Tantalus V mental facility, 2266. [1] |
| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TOS | 1 | Dagger of the Mind |
| Series : | TOS Season 1 |
| Episode : | Dagger of the Mind |
| © Graham & Ian Kennedy | Page views : 9,968 | Last updated : 9 Jan 2025 |