-According to the totheark videos, we can see that there are three members, by looking at the video parts, like themes. In some there is black and white photos and video, referring to Masky/Tim. This is because Tim is featured heavily in the videos with this type of distortion. Another is red and blue shading and distortion, which relates to Hoodie/Brian. We can see this by videos by Brian on the main MH channel, which have red and blue distortion. The third uses red colors, and only red. We don't know who the third member is, but is theorized to be Seth, as he was a member of the MH crew with a motive to be against Alex, the access to footage used only by him, the Cameraman.
Analysis / Marble Hornets