Jazz Tangcay Artisans Editor Have you met Gary Oldman’s Jackson Lamb in “Slow Horses”? Here’s someone who could give “Succession’s” Logan Roy a run for his money. The unkempt Jackson sports a trademark beige mac, rarely showers, shamelessly farts around other people and epitomizes rude and crass behavior. He’s also been sent to the equivalent of purgatory by his British spy agency bosses, Slough House.