Joanne Cardsley, a character from the British soap opera Hollyoaks, is often described as "devious" due to her manipulative and scheming actions throughout the series. Here's how her actions contribute to this characterization:

1. Manipulative Schemes: According to her Wikipedia page, Joanne's actions made her notorious for being scheming. She frequently engages in manipulative tactics to achieve her goals, often at the expense of others.

2. Deception: She is known for her deceitful behavior, which involves lying and deceiving other characters. This pattern of behavior highlights her willingness to go to great lengths to accomplish her objectives, regardless of the moral implications.

3. Betrayal and Self-Interest: Joanne often betrays those close to her if it serves her own interests. This trait of putting herself first, even if it means hurting others, solidifies her image as a devious character.

You can find more detailed information about Joanne Cardsley's characterization and specific actions that have contributed to her devious reputation on her Wikipedia page.