Janus

"'His office is not as white as the rest of the Sepulcher. You could almost imagine you were somewhere else. Leopard's drawings in thin wooden frames on the walls. Janus's office is the only place in the House where you can see them in a civilized environment. ... The largest sheet shows a gloomy spider, its face unmistakably that of Janus. It's hanging forlornly from a thread in the middle of a tattered web. There aren't many people who'd hang a portrait like that in their office. But Janus did.' - Sphinx, Book One, p. 154"

Appearance
"A long-faced, big-eared graying ginger with an amazing smile that he rarely lets out. That's why he's called Janus. He's two different people depending on whether he's smiling."undefined

Notable Relationships

 * Sphinx
 * Wolf

Before the House
Unknown

In the House
Janus seems to be well-liked by students despite his association with the Sepulcher. He has been working there since at least the "past" episodes and encourages Grasshopper when he is allowed to move into the same hospital room as Wolf.undefined

On the Other Side
There is no mention of Janus on the Other Side.

As of Epilogue
Unknown

IRL
The Ancient Roman god Janus (one of the few who don't have a Greek counterpart) was in charge of passageways, transitions, beginnings and endings, and was usually depicted as having two faces looking in the opposite directions - the past and the future.