Teenage Mutant Ninja Turtles (TV Series) as
Leonardo / Dark Leonardo / Weasel / ...
- Mayhem from Mutant Island (2010) - Leonardo (voice)
- Wedding Bells and Bytes (2009) - Leonardo (voice)
- City Under Siege (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Virtual Reality Check (2008) - Leonardo (voice, as Mike Sinterniklaas)
- SuperQuest (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Web Wranglers (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Identity Crisis (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Incredible Shrinking Serling (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Hacking Stockman (2008) - Leonardo (voice, as Mike Sinterniklaas)
- The Engagement Ring (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Something Wicked (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Karate Schooled (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Tempus Fugit (2008) - Leonardo (voice)
- Enter the Dragons: Part 2 (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Enter the Dragons: Part 1 (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Past Present (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Fathers & Sons (2008) - Leonardo (voice, as Mike Sinterniklaas)
- New World Order: Part 2 (2008) - Leonardo (voice, as Mike Sinterniklaas)
- New World Order: Part 1 (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Membership Drive (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Beginning of the End (2008) - Leonardo (voice, as Mike Sinterniklaas)
- More Worlds Than One (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Legend of the Five Dragons (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Demons and Dragons (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Lap of the Gods (2008) - Leonardo (voice, as Mike Sinterniklaas)
- Zixxth Sense (2007) - Leonardo (voice)
- The Day of Awakening (2007) - Leonardo (voice, as Mike Sinterniklaas)
- The Cosmic Completist (2007) - Leonardo (voice)
- DNA Is Thicker Than Water (2007) - Leonardo / Dark Leonardo (voice)
- Head of State (2007) - Leonardo (voice)
- Race for Glory (2007) - Leonardo (voice)
- Turtle X-Tinction (2007) - Leonardo (voice, as Mike Sinterniklaas)
- Fall of Darius Dun (2007) - Leonardo / Dark Leonardo (voice)
- Milk Run (2007) - Leonardo (voice)
- Enter the Jammerhead (2007) - Leonardo / Street Phantom (voice)
- Timing Is Everything (2007) - Leonardo (voice, as Mike Sinterniklaas)
- Graduation Day: Class of 2105 (2007) - Leonardo / Robot Hockey Player (voice)
- The Gaminator (2006) - Leonardo (voice, as Mike Sinterniklaas)
- The Journal (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Bad Blood (2006) - Leonardo / Dark Leonardo (voice, as Mike Sinterniklaas)
- The Freaks Come Out at Night (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Invasion of the Bodyjacker (2006) - Leonardo / Tricerton (voice, as Mike Sinterniklaas)
- Fly Me to the Moon (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Clash of the Turtle Titans (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Night of Sh'Okanabo (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Bishop to Knight (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Insane in the Membrane (2006) - Leonardo (voice)
- Playtime's Over (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Headlock Prime (2006) - Leonardo / Concession Employee (voice, as Mike Sinterniklaas)
- Home Invasion (2006) - Leonardo (voice)
- Obsolete (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Future Shellshock! (2006) - Leonardo (voice, as Mike Sinterniklaas)
- The Ninja Tribunal (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Good Genes: Part 2 (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Good Genes: Part 1 (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Adventures in Turtle Sitting (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Return of Savanti Romero: Part 2 (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Return of Savanti Romero: Part 1 (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Tale of Master Yoshi (2006) - Leonardo (voice, as Mike Sinterniklaas)
- The Trouble with Augie (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Outbreak (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Prodigal Son (2006) - Leonardo (voice, as Mike Sinterniklaas)
- Scion of the Shredder (2006) - Leonardo (voice, as Mike Sinterniklaas)
- The Ancient One (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Samurai Tourist (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Still Nobody (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Dragons Rising (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Aliens Among Us (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Bad Day (2005) - Leonardo (voice, as Mike Sinterniklaas)
- All Hallows Thieves (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Grudge Match (2005) - Leonardo (voice, as Mike Sinterniklaas)
- I, Monster (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Dragon's Brew (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Sons of the Silent Age (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Wing and a Prayer (2005) - Leonardo (voice, as Mike Sinterniklaas)
- The People's Choice (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Cousin Sid (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Exodus: Part 2 (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Exodus: Part 1 (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Bishop's Gambit (2005) - Leonardo (voice, as Mike Sinterniklaas)
- The Real World: Part 2 (2005) - Leonardo / Various (voice, as Mike Sinterniklaas)
- The Real World: Part 1 (2005) - Leonardo / Lord Hebi (voice, as Mike Sinterniklaas)
- Same as It Never Was (2005) - Leonardo (voice)
- Across the Universe (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Reality Check (2005) - Leonardo / Gravi-Turtle (voice, as Mike Sinterniklaas)
- Time Travails (2005) - Leonardo (voice, as Mike Sinterniklaas)
- The Entity Below (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Hun on the Run (2005) - Leonardo (voice, as Mike Sinterniklaas)
- Mission of Gravity (2005) - Leonardo (voice, as Mike Sinterniklaas)
- The Darkness Within (2005) - Leonardo (voice, as Mike Sinterniklaas)
- New Blood (2005) - Leonardo (voice, as Mike Sinterniklaas)
- The Christmas Aliens (2004) - Leonardo (voice, as Mike Sinterniklaas)
- The Lesson (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Nobody's Fool (2004) - Leonardo (voice, as Mike Sinterniklaas)
- H.A.T.E (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Hunted (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Touch and Go (2004) - Leonardo / Angry Mob Member (voice, as Mike Sinterniklaas)
- Worlds Collide: Part 3 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Worlds Collide: Part 2 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Worlds Collide: Part 1 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Space Invaders: Part 3 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Space Invaders: Part 2 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Space Invaders: Part 1 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Big Brawl: Part 4 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Big Brawl: Part 3 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Big Brawl: Part 2 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Big Brawl: Part 1 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Return of the Justice Force (2004) - Leonardo (voice, as Mike Sinterniklaas)
- April's Artifact (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Rogue in the House: Part 2 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Rogue in the House: Part 1 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- The Golden Puck (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Junklantis (2004) - Leonardo (voice, as Mike Sinterniklaas)
- City at War: Part 3 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- City at War: Part 2 (2004) - Leonardo / Weasel (voice, as Mike Sinterniklaas)
- City at War: Part 1 (2004) - Leonardo / Weasel (voice, as Mike Sinterniklaas)
- Return to the Underground (2004) - Leonardo (voice, as Mike Sinterniklaas)
- What a Croc (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Modern Love - The Return of Nano (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Reflections (2004) - Leonardo (voice, as Mike Sinterniklaas)
- The Ultimate Ninja (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Secret Origins: Part 3 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Secret Origins: Part 2 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Secret Origins: Part 1 (2004) - Leonardo (voice, as Mike Sinterniklaas)
- Turtles in Space: Part 5 - Triceraton Wars (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Turtles in Space: Part 4 - The Arena (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Turtles in Space: Part 3 - The Big House (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Turtles in Space: Part 2 - The Trouble with Triceratons (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Turtles in Space: Part 1 - The Fugitoid (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Search for Splinter: Part 2 (2003) - Leonardo / Utrom (voice, as Mike Sinterniklaas)
- Search for Splinter: Part 1 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Lone Raph and Cub (2003) - Leonardo / Weasel (voice, as Mike Sinterniklaas)
- Return to New York: Part 3 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Return to New York: Part 2 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Return to New York: Part 1 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Monster Hunter (2003) - Leonardo / Parker (voice)
- Tales of Leo (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Shredder Strikes Back: Part 2 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Shredder Strikes Back: Part 1 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The King (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Notes from the Underground: Part 3 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Notes from the Underground: Part 2 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Notes from the Underground: Part 1 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Unconvincing Turtle Titan (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Shredder Strikes: Part 2 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Shredder Strikes: Part 1 (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Garbageman (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Fallen Angel (2003) - Leonardo (voice, as Mike Sinterniklaas)
- The Way of Invisibility (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Darkness on the Edge of Town (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Nano (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Meet Casey Jones (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Attack of the Mousers (2003) - Leonardo (voice, as Mike Sinterniklaas)
- A Better Mousetrap (2003) - Leonardo (voice, as Mike Sinterniklaas)
- Things Change (2003) - Leonardo (voice, as Mike Sinterniklaas)