Secret Squirrel - Secret agent squirrel with two buck-teeth seen on Hanna-Barbera's THE SECRET SQUIRREL SHOW/NBC/1965. Secret Squirrel,  a.k.a. "Agent 000" (voice of Mel Blanc) dressed in a purple hat and white trench coat (conveniently filled with all sorts of gadgets). He carried out covert assignments with the assistance of his pudgy driver, Morocco Mole (who sounded like Peter Lorre). They battled such villains as Captain Kidd, the Masked Granny, Robin Hood and his Merry Mugs and Yellow Pinky. The secret squirrel character was introduced in a prime-time special "The World of Secret Squirrel Show" (that also showcased Atom Ant). 

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Theme Song Lyrics

What an agent, What a squirrel He's got the country in a whirl. What's his name? Shh...Secret Squirrel He's got tricks, up his sleeve, Most bad guys, won't believe. A bullet proof coat, a cannon hat, A machine gun cane with a rat tat tat tat. Fights foreign spies in his disguise Takes him many places, He’s a squirrel of many faces Who’s that? Who’s that? Who’s that?  Shh . . . Secret Squirrel.