Heidi Costello

In-universe information
In-universe information
Other names	Heidi Blissett
Occupation	Model (before 2010); Pub landlady (2010–2011); Businesswoman (2010–2011)
Father	Silas Blissett
Mother	Joan Blissett
Sisters	Wendy Blissett
Husband	Carl Costello (until 2011)
Sons	Riley Costello; Seth Costello; Jason Costello
Stepdaughters	Jem Costello (until 2011)
Grandsons	Bobby Costello; Phoenix Costello
Grandmothers	Nancy Blissett
Aunts	Trish Minniver
First cousins	Mitzeee Minniver; Maxine Minniver
Other relatives	Minnie Minniver

Heidi Costello
Heidi Costello
Hollyoaks character
Portrayed by	Kim Tiddy
Duration	2010–2011
First appearance	20 July 2010
Last appearance	1 November 2011
Classification	Former; regular
Introduced by	Paul Marquess
Other names	Heidi Blissett
In-universe information
Other names	Heidi Blissett
Occupation	Model (before 2010); Pub landlady (2010–2011); Businesswoman (2010–2011)
Father	Silas Blissett
Mother	Joan Blissett
Sisters	Wendy Blissett
Husband	Carl Costello (until 2011)
Sons	Riley Costello; Seth Costello; Jason Costello
Stepdaughters	Jem Costello (until 2011)
Grandsons	Bobby Costello; Phoenix Costello
Grandmothers	Nancy Blissett
Aunts	Trish Minniver
First cousins	Mitzeee Minniver; Maxine Minniver
Other relatives	Minnie Minniver

Heidi Costello (also Blissett) is a fictional character from the British Channel 4 soap opera Hollyoaks, played by Kim Tiddy. She made her first on-screen appearance on 20 July 2010 and made her final appearance in the series on 1 November 2011, after Heidi was accidentally murdered by her father, Silas Blissett (Jeff Rawle), in which he mistakes her for Lynsey Nolan (Karen Hassan).