Yvonne Casey

Yvonne Casey is the mother of Claire Peacock. Little is known about her, but during Claire's battle with post-natal depression, Yvonne admitted she had not been close enough to Claire as a child. She occasionally appeared to babysit Freddie and Joshua and to support Claire during marital crises with husband Ashley.

In September 2006, Claire began leaving home every day, telling Ashley that Yvonne had terminal cancer and needed her care. After several weeks, Yvonne showed up at Elliott & Sons butchers shop, telling Ashley she'd been away learning yoga techniques. She was shocked to learn the lies Claire had told, and then worked with Ashley to help Claire recover from post-natal depression.

In 2007, Claire moved in with her following the arson attack which damaged the Peacock home. She was shown to object to Claire's friendship with Casey Carswell. Claire then returned home.