Who do you pick as the best mentor you've had in your military career and why?

Who is your best/favorite mentor in your career and why? For me it was SGM Wallace Goodlow (RIP my friend). Back when I was a young, brash, junior enlisted soldier I was stationed at my first duty after BCT/AIT at a Army Hospital in Vicenza, Italy. It was me, a junior enlisted to me, and an officer in our section. I had no NCO in my section, let alone in the country in my field. I was there about a year when he came on board and noticed that. He took me under his wings and molded me. He encouraged me and others to pursue an education and taught me how to lead like an NCO. He helped me turn a page in my life and career. I had been out of the active Army for 8 years and had not seen him in about 14 when I saw him again while I was at Reserve officer basic at Ft Sam. I walked up to him, a little embarrassed about switching over to "the dark side". Went up to see if he remembered me. Of course he did. And he was proud and ecstatic about my education and commissioning. What a stand up guy and leader! I know more of you have similar stories and great mentors.