Ola Serafin-Smith is a 25-year old nanny born in Gdynia, Poland and living in Liverpool, UK. She first appeared in the episode Corbanagrastala Family, replacing Gloria Robinson temporarily. She was unpopular with 4% of fans, and she had to give birth. She was unpopular with 4% more of fans, but came back for Lengthwoman Family Revisited anyway.
She wears a yellow nanny outfit and casual clothes. She has black hair and blue eyes.