Ice T lent his voice to a number of popular children’s cartoons on “The Tonight Show Starring Jimmy Fallon” on Wednesday.

The gangster rapper and star of “Law and Order: SVU” told Fallon that he has been voicing cartoon characters for years, you just have to “listen hard.”

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Fallon played clips of Ice providing the voices of Doc from “G.I. Joe,” Shaggy from “Scooby Doo,” and Dora from “Dora the Explorer,” which are all a bit more hardcore than most fans will remember.

While Ice may be a great voice actor, he is best known for his live action roles and albums. He exploded onto the scene in in 1987 with his debut album “Rhyme Pays.” He attracted serious criticism for his single “Cop Killer” in 1992. Ironically, his most famous acting role to date is that of Detective Fin Tutuola on “Law and Order: SVU.”

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Watch the clip here.