Benjamin "Ben" Ravencroft is a hidden main villain of the 1999 animated horror film Scooby-Doo and the Witch Ghost and also one of the three secondary villain of the 2009 animated horror film Alvin and the Chipmunks: The House of No Escape. He is the great-grandson of the titular female antagonist Sarah Ravencroft (Tress MacNeille). In Scooby-Doo and the Witch Ghost, his occupation is a warlock instead of a biker. He is voiced by Tim Curry, who is well known for voicing Nigel Thornberry from the Wild Thorberrys Professor Calamitous from Jimmy Neutron series, and Sir Joseph Chadwick from Ben 10 series. In Scooby-Doo and the Witch Ghost, his occupation is a warlock instead of a biker.
In 2003, Benjamin "Ben" Ravencroft, while passing through Monterrey Park with fellow bikers the Penguin (Stephen Root) and Charm Caster (Kari Wahlgren), stops at a convenience store, where he and his friends start harassing three customers Velma Dinkley (Mindy Cohn), Fred "Frederick" Jones (Frank Welker), and Daphne Blake (Grey DeLisle). Grabbing Velma and Fred with the Penguin, Benjamin holds them while Charm Caster taunts Daphne, making her ask for Velma's earlier thrown orange wallet and call her "Hope". When Charm Caster does give Daphne the orange wallet, Benjamin and the Penguin let Fred and Velma go.
Shortly, after having their motorcycles damaged by Fred as revenge for troubling him, Daphne, and Velma, Benjamin and his companions follow Fred, Daphne, and Velma to the suburbs of Riverside, where Benjamin keeping a lookout signals for his friends to come out of hiding when the coast is clear. Along with the Penguin, Benjamin begins siphoning gas from Shaggy Rogers' red Mazda van, planning on using the fuel to set fire to the haunted house. When the Penguin fills up a canister of gas, Benjamin grabs it and heads to the haunted house, where he finds Charm Caster, who had earlier wandered off, happily from a suspended rope and rake on the third floor of the old house for fun. Demanding Charm Caster to get down this instant and help him, Benjamin fails to notice Donald Walls (posing as Theodore Seville), grab her by the hair, take her inside to the attic, and kill her in cold blood. Going into the haunted house to look for Charm Caster, Benjamin climbs up onto the third floor and goes to the attic, where he finds Charm Caster dead, having been pinned to an attic rafter by the throat with a sharp pitchfork.
Staring in horror at Charm Caster's corpse, Benjamin is ultimately attacked by Theodore/Donald, who stabs him to death by the stomach with another sharp pitchfork. After killing Benjamin in cold blood, Theodore/Donald rolls his corpse like a sushi onto the bottom floor of the old house and hangs him upside-down from a dead tree. Benjamin Ravencroft's corpse, still hanging upside-down from the dead tree, is later found and eventually taken away by the paramedics.
Benjamin "Ben" Ravencroft doesn't appear at all in Scooby-Doo: The Vengeful Killer, but he only made a cameo appearance on one of Velma Dinkley's king cards alongside Brother Blood, Killer Moth, Mammoth, Gizmo, Albedo, Sir Driscoll, Sir Enoch, Sir Joseph Chadwick, Montana Max, Robin/Dick Grayson, Blue Beetle/Jaime Reyes, the Flash/Barry Allen, Guy Gardner, Solomon Grundy/Cyrus Gold, Two-Face/Harvey Dent, the Penguin, Cyborg/Victor Stone, Beast Boy/Garfield Logan, Black Mask, Black Adam, Ra's Al Ghul, Zombozo the Clown, Thumb Skull, Acid Breath, Dr. Animo, Aqua Lad, Michael Dark Star, Hex, Khyber, Firestorm, Weather Wizard, Mr. Freeze, Music Meister, Elmer Fudd, Yosemite Sam, Doctor Double X, Black Lightning, Green Arrow, Martian Man Hunter, Aqua Man, and Specter.