"Heckle and Jeckle" are animated cartoon characters created by Terrytoons in the 1940s. They are two anthropomorphic magpies known for their mischievous behavior and witty banter. The duo often finds themselves in humorous situations, using their cleverness to outsmart their adversaries. The characters made their debut in a series of short films, becoming popular for their slapstick comedy and distinctive personalities. Heckle is the more serious and scheming of the two, while Jeckle is more carefree and playful. Together, they navigate various adventures, showcasing their unique dynamic and comedic timing.