Mine was Richard Hammond. I walked in the living room at my nans when I was about 5 and he was on the screen with a seashell necklace on. I audibly said “wow” and my brother to this day makes fun of me for it relentlessly. My husband genuinely despises Richard Hammond which is pretty funny, he sees him as competition.
Also I used to really really like the Scottish engines from Thomas the Tank Donald and Douglas I think.