Last Tango in Halifax S4, E1

Re-united after 50+ years apart, Celia and Alan are reunited and decide to marry.

Cast:Anne Reid , Derek Jacobi , Sarah Lancashire , Nicola Walker , Tony Gardner , Josh Bolt , Louis Greatorex , Dean Andrews , Nina Sosanya , Katherine Rose Morley , Ronni Ancona , Paul Copley , Felix Johnson , Edward Ashley , Dean Smith , Marcus Garvey , Sacha Dhawan , Rupert Graves