Rebecca Shaw (General Hospital) - Andrea Floyd

Andrea Floyd is a fictional character on the ABC Daytime soap opera General Hospital. She was portrayed by Martha Byrne from June through September 2009.

Andrea Floyd debuted on June 17, 2009, in Patrick Drake's office to talk about the malpractice suit against him and his brother Matt Hunter due to the death of Brianna Hughes during surgery. However, Robin Scorpio believes that Brianna was actually murdered, and starts her own investigation. After Andrea hears about Robin's suspicions, she gets the lawsuit dropped so that Robin would not have any excuse to dig any further. Robin still continues digging, and eventually accuses Andrea's husband, Mayor Garrett Floyd, of murdering his mistress Brianna. Andrea is very vocal in both her defense of her husband and verbal attacks against Robin, and orders her husband to keep quiet in order to protect both his job and their reputation.

Alexis Davis as the prosecuting DA soon gets into many heated arguments with Andrea. In order to throw suspicion off of the Floyds, Andrea plants incriminating emails on Alexis' computer, making it seem like the DA was stalking Mayor Floyd because she could not get over a one-night stand that they had had. Andrea succeeds in making Alexis look like a vengeful, scorned woman, and Alexis goes over to the Floyds' mansion one night in a futile attempt to talk privately with Garrett. Instead, she is met by Andrea, they get into another heated argument, and Alexis drives off in a highly emotional state in the same direction where Claudia Zacchara's car accident occurs.

When Garrett is proven innocent, Robin starts to suspect Andrea of being the one who caused Brianna's death, identifying both a possible weapon as well as a plausible scenario where Andrea walks into the hotel suite where Brianna was having a tryst with Garrett. Andrea eventually realizes that Robin suspects her of the murder, and attempts to cover up her tracks by eliminating the one person who remembers seeing her in the hotel at the time of Brianna's accident: Edward Quartermaine.

On September 8, she succeeds in drugging Edward's martini with digitalis, causing him to have a heart attack while he is driving. Edward's car careens uncontrollably through the hospital carnival, coming to rest against a ride after plowing through several people. Andrea was just in the midst of another argument with Alexis when Edward's car hits her, and she dies from her injuries. At the morgue, Robin goes through Andrea's personal effects and finds the empty bottle of digitalis, enabling her to finally put all the pieces together and present her uncle Mac Scorpio, the police commissioner, with all the proof required not just to clear Edward of all charges, but also to prove that Andrea was the one who killed Brianna.