John Megna was an American actor whose Broadway success at the age of seven in 1960's All the Way Home led to his being cast as Charles Baker 'Dill' Harris, the toothy young summer visitor in the 1962 film To Kill a Mockingbird.
A half-brother of actress/singer/businesswoman Connie Stevens, Megna appeared in many television programs throughout the 1960s and 1970s; he played a small role as one of the "Onlies" in the "Miri" episode of Star Trek: The Original Series, and starred as Little Adam in the NASA-produced animated shorts The Big World of Little Adam. As an adult, he turned to stage directing. He appeared in two car chase films starring Burt Reynolds and directed by Hal Needham in cameo roles: Smokey and the Bandit II and The Cannonball Run.
John Megna later became a high school English teacher, and last taught at James Monroe High School in North Hills, California. On September 4, 1995, in Los Angeles, California, he died from AIDS-related complications at the age of 42.