I find it hard to believe Atsumi Tanezaki voiced all four of these characters. Then again Frieren sounds very similar to Vivy.

https://varishangout.net/media/b967bd4d-e4ff-4cf6-8a8f-e5d6f4597b62/Vivy-episode-5.webp

https://varishangout.net/media/e846a25a-e3b5-431f-88e0-21fa11d09d56/41bf5872ece31dab8b9d4c328fed918c.jpg

https://varishangout.net/media/3b37cfdf-9bde-4458-8039-001440a1e00d/8ca6ae9e221c2c0368fc8536f380a447.jpg

https://varishangout.net/media/1a52aed0-0811-408e-8a92-a5ab58bbd586/21%20%286%29.jpg