Here is a NEW Interview with Richard Rankin from Bustle

OUTLANDER – SEASON 3 – EPISODE 305
From Bustle:
After becoming invested in Claire and Brianna Randall’s personal lives at the end of Season 2, Roger Wakefield (Richard Rankin) continues to aid Claire in Outlander Season 3, in her fantastical time traveling search for Jamie. Spoilers for Episode 4 of Season 3 ahead. But “Of Lost Things” ends on a melancholy note as Claire gives up on looking for Jamie, and Brianna returns to the U.S. with her mother after sharing a kiss with Roger. But, as the preview for the next episode showed, Roger is reunited with Claire and Brianna in Episode 5 and his story is far from over. Speaking with Bustle over the phone in advance of his return, Rankin teased the impact Roger will have on the Randalls’ lives going forward, something of which book fans are already well aware.
More after the jump!
With Claire and Brianna leaving Scotland in “Of Lost Things,” Roger is left to process his emotions. “There was a bit that really struck me at the end of Episode 4 when you see a shot of each of them,” Rankin says. “He’s really alone for the first time we’ve seen Roger. He finds himself alone and Brianna’s gone and Claire’s gone and Claire’s abandoned the search for Jamie … And [Brianna’s also] feeling quite alone and detached from her mother. And Claire’s lost Frank, and she’s still obviously separated from Jamie. It’s done without much or any dialogue at the end of Episode 4 where you just get this really profound impact.”
I guess you could say that Claire, Brianna and Roger are rather at a “Stand Still” – feeling disappointed and very alone in their lives and not really bonding.