- Was the voice of Lyra in the audio versions of Phillip Pullman's "His Dark Materials" series, starring in all three books - "The Northern Lights/The Golden Compass", "The Subtle Knife", and "The Amber Spyglass".
- When Martin Wyatt was asked to write a theme tune for TV Am's Wide Awake Club (1984), Colin Frechter came up with the music and Joanna, aged 14, ended up writing most of the words.
- Was a member of the 'Mini-Pops', a group of children who sang cover versions of hit records produced by her father, Martin Wyatt.
- Voiceover artist and daughter of Martin Wyatt
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