While the Human Flea Bandleader was mainly voiced by John Brown, who also did the narration, Pee Wee Runt the flea itself, and the Agent, when the Human Flea Bandleader yells "Come back with my fleas!!", are voiced by Tex Avery instead.
The score for this cartoon was featured on the audio CD "Tom & Jerry & Tex Avery Too!".
The organ grinder plays "Carnival of Venice" briefly.
Quite modern and abstract background artwork is featured here, especially in the cafe scene, which befits the emerging mid century design trend.