For the Canadian actress see Debra McGrathDebbie McGrath is a fictional character in the Channel 4 soap opera Brookside, played by teenager Gillian Kearney, from 1986 to 1989. The character was Kearney's first television role, and featured in a plot line which launched both actress and character into the national consciousness.Debbie McGrath was introduced into the soap as Damon Grant's girlfriend.