Clyde 54 is the fifth Clyde model and the final model of the Cartoon Network era of Toonami. It was introduced as part of the total look overhaul of the block that occurred on March 17, 2007. However, It only appeared briefly in the Toonami intro of the TOM 4 era and it is unknown what became of it after Toonami's cancelation on September 20, 2008.
Clyde 54 resembled its distant predecessor, the Clyde 50, but with an animated face similar to TOM 4, Flash, and D. It resided within the Toonami broadcasting station, Flowus 3, located on an unnamed planet.