A number of characters named Frank have appeared throughout the lonelygirl15 series and its spin-offs.
- Franklin - Bree has a great uncle named Franklin, a possible reference to several ARG characters.
- Blogspot Frank -- a character in Cassieiswatching
- Frankiswaking -- another guy named Frank
- Frankiswaiting@gmail.com -- an e-mail guy
- Francis -- Cthulhu (as seen in one LonesomeOctober video) prefers to be called Francis.