David McMahon's Filmography on TV

Nick Romano lives in a poor tenement building on the south side of Chicago with his well-meaning but drug-addicted mother, Nellie. She encourages him to pursue his piano-playing talent in hopes that it will bring him a better life. Nellie's neighbors, like the alcoholic ex-lawyer who secretly loves her, help her in keeping Nick away from Louie, the resident drug dealer. But a chance meeting between Nick and Louie could change things forever.

Giants Mollusks are released from the earth by an earthquake and start killing people.

The calving of an Arctic iceberg releases a giant praying mantis, trapped in suspended animation since prehistoric times. It first attacks military outposts to eat their occupants, then makes its way to the warmer latitudes of Washington and New York. A paleontologist works together with military units to try to kill it.

Cowboys Beauregard Decker and Virgil Blessing attend a rodeo in Phoenix, where Decker falls in love with beautiful cafe singer Cherie. He wants to take Cherie back to his native Montana and marry her, but she dreams of traveling to Hollywood and becoming famous. When she resists his advances, Decker forces Cherie onto the bus back to Montana with him, but, when the bus makes an unscheduled stop due to bad weather, the tables are turned.

Scientists surgically transform the Creature into an air-breather, but being able to live on land is not enough to make him comfortable with humans. Enraged, he turns his wrath on anyone who comes near as he desperately tries to return to the deep-water world where he truly belongs.

After moving to a new town, troublemaking teen Jim Stark is supposed to have a clean slate, although being the new kid in town brings its own problems. While searching for some stability, Stark forms a bond with a disturbed classmate, Plato, and falls for local girl Judy. However, Judy is the girlfriend of neighborhood tough, Buzz. When Buzz violently confronts Jim and challenges him to a drag race, the new kid's real troubles begin.

The residents of a small town are excited when a flaming meteor lands in the hills, until they discover it is the first of many transport devices from Mars bringing an army of invaders invincible to any man-made weapon, even the atomic bomb.

Jed, an airline pilot, is resting in a hotel when he notices Nell, a young woman babysitting for a wealthy couple. As Jed gets to know Nell better he realises that the woman is not as stable as perhaps she should be.

Scientists and US Air Force officials fend off a blood-thirsty alien organism while investigating at a remote arctic outpost.

Scientists and U.S. Air Force officials fend off a blood-thirsty alien organism while at a remote arctic outpost.