Meet the Cast & Characters
Get the rundown on the stars of the series inspired by David Nicholls' novel, which characters they each play, memorable roles you may have seen them in before, and some exclusive cast interviews!
Thaddea Graham as Kat
About the Character: Cool, creative, free spirit Kat encounters the Petersens during their travels, and forms a bond with Albie.
Where You’ve Seen Her Before: Graham has appeared in a number of roles before Us, including the TV series Curfew, the TV series The Letter for the King and, most recently, in The Irregulars, alongside other MASTERPIECE stars such as Nell Hudson (Victoria) and Henry Lloyd-Hughes (Les Misérables, Indian Summers).
MASTERPIECE Newsletter
Sign up to get the latest news on your favorite dramas and mysteries, as well as exclusive content, video, sweepstakes and more.
