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Splinter aka Hamato Yoshi is a Japanese friend of Gru that is a ninja sensei. He is a deutoroganist in Teenage Mutant Ninja Minions. He is voiced by Mark Sekhon.

Splinter was first a human then was mutated into a rat by the Kraang. When he saw Gru's Minions, he saw 4 that are doing ninja moves so he ask Gru if he can get them and make them ninja.He threats Lance, Donny, Mikey and Raphael as sons.