The phrase "You're born alone, you die alone" is heard several times. One attribution is to Orson Welles --- "We're born alone, we live alone, we die alone. Only through our love and friendship can we create the illusion for the moment that we're not alone." --- Orson Welles.
Nicola Walker (Jackie 'Stevie' Stevenson) and Adeel Akhtar (Ira King) also starred together in Unforgotten (2015), as DCI Cassie Stuart & Hassan Mahmoud respectively.