There appears to be a pattern of some Deaf creators making their videos, playing multiple characters of the same creator.
Is it because video is our closest form of writing? It is our closest form of publication. Before the emergence of ASL writing recently, video has been our frozen or recorded form of writing in ASL.
To go beyond being a narrator in the video, Deaf creators seem to seek an artistic expression, using video as a form of writing. Where authors of spoken language can write stories of several characters and dialogues in a novel created by themselves as a single person/author, it would be unsurprising that Deaf authors may instinctly desire to "write" their short stories, novels, and such in ASL. Therefore, before the emergence of ASL writing, Deaf "authors" seem to instinctly "write" multiple characters of the same author/actor via video.
For examples, "Sunday Murder" (2010), a short flick by Elsie Ritchie; and a number of other videos.
During my MFA graduate year, for the lack of ASL writing, I longed for some kind of a written form in ASL, especially poetry. Given that video has been our written or published form of ASL, I explored further the concept of writing ASL in the form of video.
"The Virtue of Haukin: a visual poem" (2006) by Jolanta Lapiak (myself).
Exploring the philosophy of writing with influences from Derrida on deconstruction, trace, arche-writing, and such, I viewed my body as a pen (that explains for the black attire and black mask) on the white screen. I played with different new techniques, such as mulitple of myself as mulitple lines.
This appears to be similar to a hearing person's desire to produce multiple characters of the same creator in 2D and 3D animation with a voiceover, separated from video. Only a difference is the the mode of language that affects the result. E.g. Deaf people merge themselves into characters and language in video alone.
Related topic: Deaf Lens