| Clue | Source | Date |
|---|---|---|
| Man of mystery | Newsday | 16 Nov 2023 |
| Anonymous guy | Premier Sunday | 19 Mar 2023 |
| Mysterious gent | The Washington Post Sunday | 22 Dec 2019 |
| Unidentified guy | Newsday | 20 Oct 2017 |
| Man of mystery | Newsday | 16 Nov 2016 |
| Mystery man | Eugene Sheffer | 09 Dec 2015 |
| Man of mystery | Wall Street Journal | 18 Nov 2015 |
| Mystery man | Newsday | 08 Jul 2015 |
| Mystery man | ||
| Man of mystery | ||
| Mystery guest moniker | ||
| Common pseudonym | ||
| Mystery man | ||
| Man of mystery | ||
| Mysterious guy | ||
| Mysterious man | ||
| Man of mystery | ||
| Mysterious guy | ||
| Guy of unknown identity | ||
| Faceless person | ||
| Man of unknown identity | ||
| Game show mystery guest | ||
| Fox Mulder's informant | ||
| Mysterious fellow | ||
| Mystery man | ||
| Mysterious guy | ||
| Mystery man | ||
| "Anonymous" | ||
| Game show mystery guest | ||
| Mystery man. |