Marta Kauffman, who based Friends partly on her own life experiences, said the lack of diversity was "a product of the time period."
All the main 'Friends' cast members received at least one Emmy nod during the show's 10 year run, apart from Courteney Cox.
'Friends: The Reunion' featured a special performance of 'Smelly Cat', in which Kudrow was joined by Lady Gaga and a gospel choir.
The 'Friends' star has split from his 29-year-old fiancee, wishing her 'all the best'.
SPOILER WARNING: From secret crushes to on-set crashes, here are the ten biggest revelations from the eagerly awaited Friends Reunion special.
The cast admitted that walking onto the set of Monica's flat after 15 years – they burst into tears.
There are 15 shows altogether and we’ve even given you a hand by listing four multiple choice answers. How hard could it possibly be?