Guest Stars Phil LaMarr voices Hermes Conrad Lauren Tom voices Amy Wong Frank Welker voices Nibbler Phil LaMarr voices Additional Voices Frank Welker voices Additional Voices Phil Hendrie voices Old Man Waterfall Phil Hendrie voices Frida Waterfall David Herman voices Ambassador Molvin David Herman voices The Pain Monster David Herman voices Decapodian Man Phil LaMarr voices Head of ACLU Phil LaMarr voices Hugh Man Phil Hendrie voices Spray Painter