Miranda Hart has Sarah Hadland in her sights and hopes the actress will join her for a cameo in Call The Midwife.
The comedienne stars in the BBC period drama as Chummy Browne and has asked close friend Sarah to join her for the next series.
Sarah however insists she'll only agree to it if Miranda does her a favour in return, and appears as a jobseeker in comedy The Job Lot.
She explained: "She [Miranda] always said I should be a baby in 'Call the Midwife' - where they look into a pram and I am sitting there.
"And I said she should be a jobseeker - non-speaking, I made that clear. She can just be on the phone. It will happen, we will both cross over."
Sarah also claimed she's looking forward to reprise her role as Miranda in the upcoming Christmas special episodes.
Speaking to The Sun newspaper she said: "We are filming two Christmas specials for Miranda in November. That's exciting because we haven't shot anything for about two years."
The Job Lot has switched to ITV2 from ITV1 for the forthcoming second series, so raunchier scenes can be included.
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