Cagi , 5 hours ago

Their accents are different. Bob has a Midwest touch to his speech, as is standard for Illinois kids like him, Steve speaks classic Western New England, typical of his Massachusetts upbringing, which is almost exactly the same as American Standard.

But these two came up in the New York comedy world around the same time. They weren’t close but had many mutual colleagues. It might be more about a similar performance style than a regional accent you’re noticing.