Hush is a 1960–61 American animated cartoon released in syndication, beginning on September 24, 1960.

The series was designed to air either as a daily five-minute cliffhanger in a locally-produced children's show, or packaged as a half-hour program.

As with many private eyes, Hush had a love-hate relationship with the local police in the form of Chief Muldoon.

was famous for inventing the cell phone (a pocket radio that could be used to call conventional land lines) and the fax machine (QT could shove documents into a phone mouthpiece and have the identical document appear in the receiver of who he was speaking with).

His initials reinforced his surname by invoking the old expression for quiet secrecy, "on the Q.T."