This is a bit vague (IMHO). I wonder how many people answered "Buddhism"?
The question could have mentioned Mahavira, who according to Wikipedia "is often considered the founder of Jainism, although Jains regard him as the twenty-fourth in a lineage of tirthankaras [saviours or teachers] through whom Jains trace their traditions."
In the picture on his Wikipedia page (linked above), he does look very much like the Buddha.
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