Leonardo in the 2003 TV series, is the leader of the group. He is the most mature and responsible of the four brothers, and takes honor and responsibility as his priority.
What characters would you like to hear voice actors voice?
Rules: no adding celebrities (with the exceptions of Mark Hamill, Keith David, Ron Perlman, Tim Curry, J.K. Simmons, Matthew Lillard, Steven Yeun, Ben Schwartz, and a couple others), no adding singers or musicians, no adding talk show hosts. Only add people who primarily do voice acting.
