Harrison's character was involved in many explosive storylines, including an affair with her daughter's husband Grant (Ross Kemp).
She got the part after having strong sexual chemistry with Ross Kemp (who plays her on-screen husband, Grant Mitchell) at her audition.
She then trained at the Webber Douglas Academy of Dramatic Art in the 1980s, where she was a classmate of actor Ross Kemp.
Her return was prompted by her friend and EastEnders co-star Ross Kemp, who initiated contact between her and producer Matthew Robinson.
Diana Ross | Jack Kemp | Rick Ross | Jonathan Ross | Ross | Adrian Ross | Ross Ice Shelf | Ross-shire | Ross Perot | Ross School of Business | Ross Macdonald | Ross Island | Rick Ross (rapper) | John Ross | Easter Ross | Charlie Kemp | Alex Ross | Alexander Ross | Tracee Ellis Ross | Pete Ross | Lindsay Kemp | Betsy Ross | Ross Macpherson Smith | Paul Ross | Matt Kemp | Ross University | Ross Sea | Ross Powers | Ross Golan | Ross Bagdasarian, Sr. |