Ask Lemmy

IANAL (and likely neither is anyone here) - and I think the answer would be "it depends" on other details if you asked a lawyer to make a decision on what you've shared. So I think that is the only route if you can't get YouTube or the blogger to do the right thing.

Some relevant things this might hinge on:

• Is the person posting this doing making videos as a business venture - e.g. by making videos that they hope to profit from (e.g. by including advertising in it, or through YouTube monetisation)? If this was done as part of a business, that could make a big difference (generally businesses are held to a higher standard).
• Which country did this happen in? Laws are different between countries.
• Did they deceive you in any way to get you to do what they wanted for the video?
• Are you a public figure in any way (prior to the video)?

Some potential causes of action that your lawyer could consider if they apply:

• Misleading conduct - if they used deception in the course of their trade.
• Fraud - if they obtained valuable consideration (your video performance) through deception.
• Privacy Infringement - if they processed (including collected) your personally identifiable information (e.g. including images / videos of your face, or the identifiable sound of your voice) without consent or another lawful basis / denial of right of erasure. Some of this could apply to Google too - you might be able to submit a Right of Erasure (right to be forgotten) legal request, and at minimum they might need to blur your face and mask the audio so you aren't identifiable.
• Copyright infringement - potentially what they recorded counts as a performance and you have a copyright interest in the video. Another one that could apply to Google and be used to take it down.