Wall-crawler

As Mother Jones goes to press, the masked, web-slinging wall-crawler is busy foiling a computer technician's evil designs to brainwash people through subliminal advertising in video games.

Source: wiktionary

You're not just buying and selling with a wizard and a scholar in tow. What's so important that you have to hire a wall-crawler?

Source: wiktionary

Her fingers slipped, and she felt herself starting to fall. At that same moment the wall-crawler sprang down at her, gripping the carved inscriptions in the black glossy surface with its left hand while its right swung down to clamp around her throat.

Source: wiktionary