Lana

Don't get on Lana Kane's bad side unless you desperately want to tell the tale through broken teeth. Tough, sexy, side-splittingly rude and always exasperated at the idiocy that unfolds around her, Lana is one of ISIS's best agents. She's also Sterling's ex-girlfriend, but we won't hold that against her.

A keen lover of porn and cleavage-enhancing outfits, Lana refutes all allegations of being "baby crazy", and is currently dating agency uber-nerd Cyril Figgis. Much to everyone's disbelief.

Most likely to say: "Finally back to work? Great, because, go f*** yourself."

Aisha Tyler, who plays Lana, is best known for her appearances in Friends as Ross's girlfriend Charlie. She's also had recurring roles in 24 and CSI, and guest turns in Curb Your Enthusiasm and Reno 911.