The old text to speech voices are still around in Sequoia. Some have been changed to a generic "my name is x". But most still make their fun little jokes.
Found in the voice over utility app.
Accessibility > Voice Over > Voice Over Utility > Speech > Add Voice
Found in the voice over utility app.
Accessibility > Voice Over > Voice Over Utility > Speech > Add Voice
https://en.m.wikipedia.org/wiki/PlainTalk