Complex sentence: Dominique is good friends with Hollyoaks co-stars Alice Barlow (who plays Rae), Kieron Richardson and Saira Choudhry, as well as Lucien Laviscount from Coronation Street, and a mutual friend of Tkaya Green whom she helped upon being discovered.
Split into simpler sentences: Dominique is good friends with hollyoaks co-stars Alice Barlow (who plays Rae), Kieron Richardson and Saira Choudhry, as well as Lucien Laviscount from Coronation Street. And a mutual friend of Tkaya Green Whom she helped upon being discovered.