Teenage Mutant Ninja Turtles' fourth season originally aired between September 10, 2005 and April 15, 2006, beginning with the "Cousin Sid" episode. Fourteen random episodes from this season were released on DVD on September 12, 2006[1]

Much of the series focused on Leonardo, the group's leader, who became more reserved and isolated following the final episode of the previous season in which he, his brothers and their master were almost killed. He went so far as to lash out at Splinter, causing him serious injury.


For the entire season Karai is the leader of the Foot Clan. Hun controls the Purple Dragons. New enemies are seen in this season.


Main Characters



  Teenage Mutant Ninja Turtles - Season 4 [view]]]
Characters: Leonardo  · Donatello  · Raphael  · Michelangelo  · Splinter
Ancient One  · April O'Neil  · Casey Jones  · Karai
Baxter Stockman  · Agent Bishop  · Renet  · Leatherhead  · more...
Episodes: "Cousin Sid"  · "The People's Choice"
"Sons of the Silent Age"  · "Dragon's Brew"
"I, Monster"  · "Grudge Match"
"A Wing and a Prayer"  · Bad Day  · Aliens Among Us
"Dragons Rising"  · "Still Nobody"
All Hallows Thieves  · Samurai Tourist"  · "The Ancient One"  · "Scion of the Shredder"  · "Prodigal Son"  · "Outbreak"  · "Trouble with Augie"  · "Insane in the Membrane"  · "2"  · "Tale of Master Yoshi"  · "Adventures in Turtle Sitting"  · "Good Genes, Part 1"  · "Ninja Tribunal"
Other: [[]]  · [[]]