Crispin Freeman's role as Holland in Eureka 7, which was my first real anime.
Yeah, I watched Speed Racer and Pokemon when I was younger, but I never knew what anime was. They were just cartoons to me.
Then I came across Eureka Seven and kept thinking "Man, that one guy's voice acting is awesome! And he sounds familiar." One google search later and I found that he had done Regal in Tales of Symphonia for the Gamecube, my favorite character from that game almost purely for the voice alone!
Since then every time I've come across his voice I recognize it immediately. What a guy!
In fact, I had hoped to grow up to have a deep voice like his. Years later, I'm 21 and my niche is young voices. *sigh* Oh, well. Work with what you're given.