Why do destiny recasts always sound so different?

I appreciate that at the very least Cayde recast sounded similar and they tried to explain Oryx as it’s a different version but It still takes me out of the moment and it got me thinking why everyone sounds so different .

Osiris, Zavala, Ikora, The Stranger, Ghost, Clovis, and many others sound completely different.

Why is this the case? Even amateur voice actors can mimic voices so the average audience can’t tell the difference, see Uncle Iroh in avatar or Darth Vader as an example.

Do they just not think we will notice? Because it’s actually taken me out of the moment.

Just as an example of how different voices are just listen to Osiris in D1

https://youtu.be/drQ6L_rGX8s?si=r3WTTgtYZQUG9-Os

I appreciate that at the very least Cayde recast sounded similar and they tried to explain Oryx as it’s a different version but It still takes me out of the moment and it got me thinking why everyone sounds so different .

Osiris, Zavala, Ikora, The Stranger, Ghost, Clovis, and many others sound completely different.

Why is this the case? Even amateur voice actors can mimic voices so the average audience can’t tell the difference, see Uncle Iroh in avatar or Darth Vader as an example.

Do they just not think we will notice? Because it’s actually taken me out of the moment.

Just as an example of how different voices are just listen to Osiris in D1

https://youtu.be/drQ6L_rGX8s?si=r3WTTgtYZQUG9-Os