Michelle "Shell" Dockley is a fictional character from the award-winning prison drama series Bad Girls.

Shell is violent and ruthless, and delights in acts of cruelty and torture; officers and prisoners alike call her a psychopath.

She is a drug dealer and pusher, and has no real friends on the wing, except Daniella "Denny" Blood (Alicya Eyo), a relationship that is also sexual.

Jim and Shell's relationship ends for good after she stabs him with a broken bottle in the opening episode of Series 3.

She is involved in a relationship with married officer Jim Fenner, who is also having an affair with Rachel Hicks (Joanne Froggatt), a young prisoner whom Shell bullied.

Shell is usurped as Top Dog on G Wing by Yvonne Atkins (Linda Henry) by the end of Series 1.

Shell gets a mobile phone smuggled into Larkhall and calls Fenner's wife, Marilyn, to let her know about the affair.

Shell then begins acting strangely and eventually tells Wing Governor Karen Betts (Claire King) that she was sexually abused by her father as a child.

When Fenner enters her cell and begins having sex with her, she pulls out a broken glass bottle and stabs him in the stomach with it.

Karen hears Fenner screaming after Shell stabs him and almost the entire prison staff attempt to save him.

Sylvia Hollamby (Helen Fraser) is furious when Shell is allowed back on G-Wing, so has her transferred to the psychiatric unit of the prison, which the inmates refer to as "the muppet wing".

Shell and Denny stay with a pimp in Kings Cross for the night, and the next day wear wigs to conceal their identities.

They break into the Hollamby residence, and when Sylvia returns home, they take her hostage and force her to dress as French maid and serve them cocaine on a tray.

But Denny is later re-captured and returned to Larkhall, with news that Shell was last seen speed boating while under the influence of drugs and is presumed dead.

Shell and Denny are also reunited, and plan to get revenge on Snowball Merriman (Nicole Faraday) for killing Shaz.

Shell continues her business with Fenner and soon goes into labour, giving birth to a baby boy who she names Ronan Beckham Dockley.