Tony Visconti, producer and engineer of T-Rex and many Bowie albums (and hundreds of other acts), also plays bass. He did many shows as Bowie's bassist in the early 70s, as well.
This photo shows him playing with Holy Holy at Highline Ballroom in NYC. (photo by David Conn) ‎- Smooth Young Priest
I blush to admit that, even though I follow his recording exploits, I had no idea that he still performed in front of audiences. ‎- Smooth Young Priest