Skinny Dennis Sanchez was a country session musician in the Los Angeles area and played bass in Nashville legend Guy Clark's band during Clark's stay in Los Angeles. Sanchez stood at 6'11", and weighed 135 lbs.

He is most famously mentioned in the Guy Clark song,

"L.A. Freeway" (recorded by Jerry Jeff Walker in 1972). 

     Here's to you ol' Skinny Dennis
     The only one I think I will miss
     I can hear your low bass singin'
     Sweet and low like a gift you're bringin'

Sanchez died in 1975 at age 28 of heart failure on stage, playing the bass on Sunset Beach with John Penn.