I have only done a few voice actor type things. I have a friend that works at a radio station and recorded a commercial for him.
I haven't done voice overs, but did spend my high school career participating in Speech, debate, and drama classes.
I do have a voice that people can trust. I know this because people tell me things. I talk to people on the telephone all day long at my dayjob, and find people enjoy listening to me, and because of the trustworthiness of my voice they tell me secrets...I had one customer tell me of being sexually abused. It was our first ever conversation, and during the course of it, she felt she could trust my voice enough to tell me that secret.