It's been a long time since season 2 ended, and the time travel concepts on this show have always been challenging (in a good way) to follow, so the Syfy has a wiki, even with a lot of typos and poor organization, has some useful information, especially the character pages: continuum.wikia.com/wiki/Category:Characters --although I had to use the site's search box to find Escher's page.When the episode ended, it seemed only 20 minutes had passed instead of over 40. Heh.