#barclay beg chetwynde

“There’s a lady falls from a window in the west wing. […] And a strange creature that roams the grounds. Half man, half ape.” - Barclay Beg-Chetwynde in 1x05

Does this mean that Robin, just like Fanny, can sometimes be seen by living people? Perhaps on nights of a full moon, when the light hits him just right?

Either way it would mean Robin has not just one but at least two ghost powers - electric light manipulation and (conditional) visibility - and that Mike could actually see him under the right circumstances.