TV
Channel 4
The actress returns as Pandora for the fourth run of the show, which will feature Will Young and Chris Addison.
Speaking at the premiere of the St Trinians sequel, Blackwell told ITN that work on the show had been a "hoot".
The star also revealed that her character would distance herself from the other students this year and realise that there is more to life than school.
Blackwell added that she sometimes sounds like Pandora during interviews as she "stumbles over her words" because of the "pressure".
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