But Jon, its character is that it hasn't any distinct character. That is a great character - for a lens.
Erik.
Erik, so to sum up, the Ultron's distinct lack of distinct character is its distinct character? It's exactly not what the OP is looking for, but its very Zen of you, Erik, very Zen 😉
The responses thus far have been very entertaining. Perhaps some clarification is in order.
The lenses I cited initially (Summar, Summitar, Jupiter, Sonnar) have a distinctive look at wider apertures that could be described as a departure (deviation) from the real scene. Glow and swirl are the best words I can conjure to describe these attributes. As mentioned above, the aberrations of older LTM-era lenses are what give way to this look.
Is there, for example, a 35mm lens that creates images with the "character" of a wide open Sonnar 50/1.5?
The W-Nikkor 35/1.8 and 35/2.5 do swirl under the right circumstances.
This is the W-Nikkor 35/1.8 reissue, which is pretty much identical to the vintage version in terms of swirl. Images take from goliathus's posts here.