The Hidden Mustachios are hidden characters. After the episode Mystery of the Mustachios, many more Mustachios have appeared hidden in epsodes of the Annoying Orange. have been secretly hiding in episodes, starting from Wazzup Blowup. The reason for this was a Facebook competition. They appeared most abundantly in season 3. One even appeared in an episode of The High Fructose Adventures of Annoying Orange.
- Best Fiends Forever: Between the toaster and the bottle at 1:44/in the mess at the bottom left corner at 3:53.
- ZOOM!: At 0:20 under the left hot plate (blocked by caption that says "Thumbs up for ZOOM!!!) /under the toaster at 2:40 while.
- Kung Fruit: At 0:52 in the hot plate right next to Midget Apple/At 1:35 on the right of Orange/at 2:04 in the bottom left corner.
- Rolling in the Dough: At 0:40 to the right of the toaster/At 2:09 a split second before Heel pops out of the toaster.
- Comedy Clubbing: On a chair at 1:56 and under a chair at 2:08.
- Annoying Orange Through Time 2: 0:25 on a tree and 0:45 right below the screen at the patch of grass below Orange.
- Mommy and Me: At 1:32 under the toaster while Mama Orange and Orange are annoying the crap out of Yam under the toaster 2:17 while Yam is being knifed on the toaster knob and under the hot plate on the stove.
- Juice Boxing :2:14 at the toaster and 2:50 beside the toaster.
- Fruit for All: At 0:15 on the lower right corner and at 1:46 on the steps near Banana.
- Flower Power!: At 0:00 at the very bottom on the bookcase.
- Trollin': At 1:15 on the toaster latch and at 3:47 behind Pear.
- YouTubers: At 1:18 under the tripod and at 3:33 in the credits at Knife.
- Be a star!: At 0:41 on Pear's camera for a half second.
- Orange Potter and the Deathly Apple: At 1:01 behind Orange at the top-right.
- The Voodoo You Do!: At 2:24 On a candle; 3:13 hidden right inside the O in the "annoyingorange.com" caption.
- Harlem Shake v9000 (Kitchen Edition): Seen dancing to the Harlem Shake song.
|Characters of The Annoying Orange|
|Main Characters||Orange · Pear · Midget Apple · Marshmallow · Passion Fruit · Grapefruit · Grandpa Lemon · Apple|
|Recurring Characters||Squash · Knife · Liam the Leprechaun · Captain Obvious · Nude Dude · Dr. Bananas · Zoom · Copper Lincoln · Lou the Tick · Orange's Sister · Gaming Grape · Sour Rangers (Red · Yellow · Pink · Green) · Mustachios|
|TV Exclusive Characters||Nerville · Apple · Coconut · Peach · Tomato · Banana · Pineapple · Ginger · Broccoli Overlord|