I don't think I have even a single character with a canonical voice actor, and the ones with PBs don't necessarily sound like their PBs because I only chose them for their faces and not an actual fantasy casting thing.
...Well, I guess Bastion technically has a guy who makes the noises that get heavily processed into their beep boops, but imo that shouldn't count.
Speaking of! Bastion is the bearer of my headcanons about spoken omnicode, which I keep trying to find a non-overcomplicated explanation for.
I noticed some recycled sound effects for their "dialogue" between the game and the cinematic, and in general their vocalizations aren't as complex as, say, R2-D2's, so what I think is going on is that most of the meaning isn't in the sounds. Those are to convey tone.
The actual words are basically in subtitles. Or text messages? Text-based transmissions.
In Sail, the translation magic basically beams the subtitles into people's heads. But I have an alternative in case people don't like that, where I borrow the voices of other robot characters!
Mostly One-One from Infinity Train and the turrets from Portal.
I try to write tags in a way that allows for both interpretations to be possible.
Wilson is voiced by muted trumpet noises in canon, except for a couple of non-canonical but official animations where one of the developers read his lines. I'm not super attached to that voice for him but I don't completely hate it.
I try to keep the spirit of the silly trumpet noises by describing his voice as squawky, comparatively high-pitched for a guy, and undignified when he screams (because his in-game hurt noise sounds like a squeaky dog toy). He also has an American accent because while it's not really clarified in canon I do headcanon that he grew up there.
Whoops I'm not done talking about Bastion. I imagine a lot of pre-war and wartime omnic models, especially combat designs, don't have vocal processors sophisticated enough for full phonetic speech; Efi had to get a new one for Orisa and she's a souped-up OR15.
Ramattra being a notable counterexample, idk what the deal is with that, maybe Ravagers being able to taunt human enemies was an intended feature.
I love Wilson's trumpet ass trumpet voice
[frightened trumpet honk]