[s3e15] It's Goin' Down Link

: While Jack chases Huey, Ed Wuncler III and Gin Rummy are the actual masterminds plotting to blow up Wuncler Plaza for insurance money.

The episode features a star-studded guest cast alongside series regulars: as Ed Wuncler III Samuel L. Jackson as Gin Rummy Mark Hamill as Grant Edward Asner as Ed Wuncler John C. McGinley as The White Shadow [S3E15] It's Goin' Down

This response uses data provided by Google's Knowledge Graph "The Boondocks" It's Goin' Down (TV Episode 2010) - IMDb : While Jack chases Huey, Ed Wuncler III