This Is Us star Sterling K Brown talks season 5 storylines

Brown, who in the show plays the adult version of Randall, Rebecca's adopted son and brother to twins Kevin and Kate, told Entertainment Weekly viewers should expect more backstory to the unlikely romance (Miguel was best friends with Rebecca's now-dead husband Jack).

"There should be some more backstory on the Miguel-Rebecca connection," Brown said. "I do think that that's something that we're trying to explore in season 5."

The season four finale also revealed that Madison, who attended Kate's weight support group, was pregnant with Kevin's twins.

https://twitter.com/TheMandyMoore/status/1242639632786952199

Brown said, "It's really going to be interesting to experience the Knocked Up storyline of Madison and Kevin and how exactly that whole thing looks, because Madison is just such a wonderful character and Caitlin [Thompson, who plays Madison] does such a great job."

He also added that the next season would explore Kate and Toby's second adoption, before teasing an exciting storyline for his own character, Randall.

“There's something there for Randall that I'm really excited about,” he said. “It has to do with this exploration of past. In a similar way in which we went to Memphis [near the end of season one] to find out things about where he came from, his father's family, etc., it's going to be something very much akin to that. But with its own little unique spin on it. I don't want to say too much, but it should be cool.”

However, it's not yet known when season five will air, given current delays due to the coronavirus pandemic. You can check back in with RadioTimes.com for all the latest updates.

You can sign up to Amazon Prime Video here to catch up with This Is Us.

If you're looking for more to watch, check out our TV guide.