FRIENDS viewers wouldn't recognise these two but they are the pair who played one of the show's most important characters. Noelle and Cali Sheldon took turns playing baby Emma, the daughter of Rachel Greene and Ross Geller in the hit sitcom.
Signing up twins to play babies is common in TV and film because of strict rules about how long each of them can 'work'. But they were immortalised in telly history as Emma Gellar-Greene, with the character introduced in the eighth series.
Noelle and Cali are now - and at this point please look away if you don't want to feel old - 19 and attending university together.
The twins are in their second year at Ucla - a famous college in Los Angeles, California. While the appeared identical to Friends viewers - who were unlikely to even know the child was played by two people - they claim they can tell the difference.
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