Seth Costello


First Appearance
20 July 2010
Last Appearance
30 December 2011
Date of Birth
22nd February 1995
Carl Costello (father), Heidi Costello (mother), Riley Costello (brother), Jason Costello (brother), Silas Blissett (grandfather), Mitzeee Minniver (first cousin once removed), Maxine Minniver (first cousin once removed), Minnie Minniver (second cousin)
Portrayed by
Miles Higson

Seth Costello is a fictional character from British soap opera, Hollyoaks. Son to Heidi and Carl Costello, he has a transgender twin Jasmine, later known as Jason. Younger brother to Riley, and uncle to Bobby, Seth is one of the grandchildren of psychopathic serial killer, Silas Blisset.

Seth's major plot points include struggling with body image and turning to steroids, discovering his father's affair with his brother's fiancé, and being emotionally blackmailed by Warren Fox.

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