Some additional facts I forgor to mention about RTV! Mask
They don't talk very often, it's rare, but when they do their voice is often quite, quick, and raspy. On even more rare occasions, some employees have sworn when they hear Mask speak, they can hear whispers, like a dozen other voices talking along side them. It's extremely quite, and hard to hear, but if you listen closely you might just catch it.
No one has ever seen them eat, or even leave the building to go home and rest. However many have reported there seems to be less pests like mice, rats or bugs around the studio since they started working there.
RTV has no memory of hiring them and no one can really pin point when they started, however everything in the system is up to code, they're on the payroll and everything, yet the checks are mailed to a closed off and abandoned building. What's Eben more strange is that further investigation shows the checks are delivered, but no one's able to find them. In addition, bank statements show that the checks are being cashed out, but no one knows who is doing it.
No one has seen Masks face, if at any point their Mask is removed they'll become hysterical and cover their face until their Mask is returned or a replacement is offered.
Mask will be constantly seen either following around or staring at RTV or the art department head until given an order, in which they will leave them alone untill the task is complete. They do not do this with anyone else, however it's not uncommon for them to stare at people for a few minutes before going off to search for RTV if they can't find him right away. If someone gives them and order that's not RTV or the art department lead there is a chance Mask won't do it, but if it's something simple there's a high chance they'll do as told.
Their "office" is actually just an large walk in closet repurposed just for them. Again, no one knows when they cleared out the closet for themselves but they are most often found there. Sometimes people can hear them muttering nonsense from behind the door.
In addition to these facts, you are welcome to ask questions about them! You just can't ask them questions directly