- Mild Ones (debut)
- SpongeBob SquarePants
- Prospector (debut)
- Eugene H. Krabs
- Barnacles (mentioned)
- Squidward Tentacles
- Patrick Star
- Giant clams
- Frankie Billy
- Martha Smith
- Miss Rechid
- Harold "Bill" Reginald
- Nat Peterson
- Norma Rechid
- Tina Fran
- Harold (red fish)
- Abigail Marge
- Jimmy Gus
- Nathiel Waters
- Susie Rechid
- Goofy Goober (name on underwear)
The episode begins with SpongeBob jellyfishing. He tells a jellyfish to stay off the road because it's dangerous. Some men on motorcycles drive past him, and SpongeBob holds on to one of the men's jackets, ripping an 'M' off of it. He looks at the jacket when he has to let go of it. He presumes it says "The ild Ones," but he soon notices the "W" in his hand and figures out that they are called "The Wild Ones." A fish pops from the ground after hearing this and tells him that "The Wild ones" are a group of vicious bikers who have destroyed cities. SpongeBob runs to tell Mr. Krabs about it, but he doesn't listen, so he tells Patrick. Then, Mr. Krabs takes the opportunity to welcome to bikers and raises his prices in order to get them to eat there after hearing SpongeBob described them as "ravenous," thinking that he will profit from their business.
After Patrick says that if they dressed up like bikers, they would be the big scary bikers, SpongeBob and Patrick decide to dress in biker attire and ride into town on a paddle-unicycle and a paddle-tricycle, respectively. After the bikers arrive at the Krusty Krab, it turns out that they are old folks.
The actual name of the biker gang is revealed to be 'The Mild Ones.' SpongeBob had the "M" upside-down. The biker that had the "M" ripped off of his jacket gets his "M" back from SpongeBob, and The Mild Ones ride away. Shortly after this, it is revealed that Squidward decided to join with them.
|( ‣ ) Associated production music|
|( • ) Original music|
|( ◦ ) SpongeBob music|
‣ Marlin March - Sage Guyton, Jeremy Wakefield [SpongeBob jellyfishing]
‣ Barbecue Beach - Martin Busca, Thomas Klein ["The -ild Ones. That's a strange name."]
‣ Vibe Sting - Nicolas Carr ["Hmm, W."]
‣ Old 49er - Nicolas Carr [hillbilly warns SpongeBob about The Wild Ones]
‣ Lovely Scenery C - Mladen Franko ["Bloodthirsty bikers?!"]
‣ Lap Steel - Nicolas Carr [shortcut]
‣ Finger of Fear - Fredric Bayco [SpongeBob barricading the door/"Bikers... coming... nasty... ferocious... take... over... town. Destroy... must hide!"]
‣ Vibe Q Sting - Nicolas Carr ["Ravenous, did you say?"]
‣ Dingles Regatta - Brian Peters [biker decor]
‣ Steel Licks (b) - Jeremy Wakefield [SpongeBob cries]
‣ Barbecue Beach - Martin Busca, Thomas Klein [bikers heading toward Bikini Bottom]
‣ Drama Link (e) - Hubert Clifford [SpongeBob warns Squidward]
‣ Goofy Conversation - Nicolas Carr, Barry Anthony ["I know just what you should do."]
‣ Nude Sting - Nicolas Carr [Squidward kicks SpongeBob]
‣ Gator - Steve Belfer [SpongeBob warns Patrick]
‣ On Fire - Gregor F. Narholz [they panic]
‣ Steel Sting - Jeremy Wakefield [clam spits SpongeBob and Patrick out]
‣ On Fire - Gregor F. Narholz [SpongeBob and Patrick get launched into some kelp]
‣ Grass Skirt Chase - Sage Guyton, Jeremy Wakefield [lawnmower]
‣ On Fire - Gregor F. Narholz [SpongeBob and Patrick scream]
‣ Harp Ding - Nicolas Carr ["Say that again, Patrick."]
‣ Twang Bar Blues 1 - Steve Byrd [SpongeBob and Patrick dressed as bikers]
‣ Jovial Jack - Philippe Pares [riding unicycles]
‣ Steel Sting (f) - Jeremy Wakefield ["Patrick, it's working."]
‣ Tomfoolery - David Snell [at the Krusty Krab]
‣ The Sword of Damocles - Jack Beaver [montage of SpongeBob overreacting]
‣ The Tip Top Polka/The Cliff Polka - Chelmsford Folk Band ["SpongeBob, you always overreact to everything!"]
‣ Rescue - Cecil Milner [bikers arrive]
‣ Hilo March - The Hawaiian Serenaders [ending]
- This episode is available on the Season 4 Volume 2, Complete Fourth Season, and First 100 Episodes DVDs.
- As of December 21, 2018, The Internet Movie Database (IMDB) gives this episode a rating of 8.0/10 based on 266 ratings by users. TV.com users give this episode a rating of 8.4/10 based on 133 votes.
- Although this episode was made in 2006 and aired in Germany that year, it didn't premiere in the USA until March 31, 2007.
- This episode aired in Germany on Saturday, November 18, 2006, before it aired in the United States.
- This episode was released on the Season 4 Volume 2 DVD box set, before it aired on TV in the USA.
- This episode aired in Latin America on Wednesday, March 28, 2007, before it aired in the USA.
- When SpongeBob takes the shortcut, he breaks the fourth wall by riding the bubble transition.
- SpongeBob's biker outfit consists of:
- A red and white striped long sleeved top
- A denim waistcoat
- Brown work boots
- And a round helmet with a spike and a skull.
- His bike is his paddle-unicycle (which was seen in some other episodes).
- Patrick is seen wearing his Goofy Goober underwear from The SpongeBob SquarePants Movie.
- Patrick's biker outfit consists of:
- A yellow-ish T-shirt
- A black leather jacket with a high collar
- Blue denim shorts with a big belt with a skull on it
- And a black cap.
- His bike is a paddle-tricycle.
- Old Man Jenkins is one of The Mild Ones.
- This is the first episode where Patrick gets shredded by a lawnmower. The second is in "CopyBob DittoPants."
- This is the second episode where a shortcut to the Krusty Krab is shown, the first being "Wormy."
- This is the second episode to show blood. The first is "Dying for Pie."
- This episode contains the second Goofy Goober reference outside of the first movie. The first is the Goofy Goober back scratcher in "Chimps Ahoy."
- This is the third episode where the letters W and M are switched around, the first being "Mermaid Man and Barnacle Boy IV" and the second being "No Weenies Allowed."
- This is the last episode to use the APM track "Hilo March."
- This is the 150th episode in premiering order.
- The German title for this episode is "Wilde Jungs," which translates to "Wild Boys."
- The Greek title for this episode is "οι άγριοι," which translates to "The wilds."
- The Arabic title for this episode is "الآحاد البرية" (alahad alb aria: El-ah-had-u Dor-rrea-do), which translates to "Wild Ones."
- The title of this episode is a reference to the song "Born to Be Wild" from the film Easy Rider.
- Coincidentally, the episode title is similar to an episode of Squirrel Boy called "Born to be Mild," but in this SpongeBob SquarePants episode, a motorcycle gang is named "The Mild Ones."
- SpongeBob and Patrick's attire were inspired by the 1953 film The Wild One.
- At the mid-beginning where the setting takes place in the Krusty Krab and at Squidward's front door, if one listens carefully, SpongeBob's crying and overreacting sound like he's laughing as displayed in the subtitles, yelling “Aha, ha, aha ha, aha ha!” and “Ah, ha, ha!”
- After SpongeBob and Patrick get shredded by a lawnmower, they are broken apart into pieces, while Patrick is shown to be several smaller stars. However, it is impossible that they could all form to make him again, as decagons do not tessellate.
- Right before SpongeBob says "we walk the walk," if paused at the right frame, one can see that for one frame the whites in SpongeBob's eyes have turned completely yellow and one of his legs have went missing.
- Right before the Mild Ones driving around Squidward, when watching in slow motion, it can be seen that some of the men's jackets say "Mile Ones" instead of "Mild Ones."
- Though this episode is not the official season finale in production order[the way the DVDs are realeased], Comcast/Xfinity call this season 4 episode 20.