According to Alex, Tannis was "a hot ticket on the talk show circuit" in the 1990s.
Tannis has a warm personality, and seems to be open towards meeting new people. According to Alex, he is "a good hiking companion".
Alex Reagan: Tannis is friendly with Alex, and allows her to observe and accompany him on his search for Sebastian Torres.
Dr. Richard Strand: Tannis is less openly hostile to Dr. Strand than most other paranormal experts. However, when Alex asks whether Dr. Strand can accompany her and Tannis as they search for Sebastian , he says Dr. Strand will "have to read about it in [Tannis'] next book".
Episode 107: The Los Gatos police department calls Tannis in for help with the search for Sebastian Torres. Alex accompanies him as he searches for Portola State Park.
- "His charming brand of self-help infomercial thinking and enthusiasm for unlocking human potential did strike me as a little hokey. But there was definitely something seductive about the man himself." – Alex Reagan
- Tannis says he is familiar with The Black Tapes Podcast, although it is unknown whether or not he is a fan.
- Tannis claims to Alex that Vladimir Lenin was able to bilocate.