how to say不起眼的小人物 in Engllish?

不起眼的小人物 = small potato
= not much to look at
e.g. He is not much to look at, but he is well-informed.学识广博

不起眼的小人物这话英语怎么说

不起眼的小人物 = small potato
= not much to look at
e.g. He is not much to look at, but he is well-informed.学识广博