Crossovers
- None
Cameos/References
- Sluggy Freelance - A note on Doc's desk reminds everybodt about reading Sluggy... for their healths sake! 15-07-2002
- Schlock Mercenary - Schlock Mercenary is too good to be true... that the note on the desk says! 15-07-2002
- PvP Online - A little species-mistake causes Brent to end up in pieces under a furious Doc! 25-10-2002
- NEWBS - Off couse Doc can't shovel the parking lot! He is reading NEWBS for Christ's sake! 23-12-2002
- Commander Kitty - Commander Kitty is impatient in the queue... but is that weapon legal here? 01-09-2003
- Movie Punks - Looks like one of the Movie Punks is ready to enter the field of paintball! 01-09-2003
- Sluggy Freelance - Torg seems to be a little dispairing when he sees the length of the queue! 01-09-2003
- Ozy & Millie - Millie can hardly be spotted in the long line for the Paintball walk-on! 01-09-2003
- Weak-End Warriors - At least there's one pro Weekend-Warrior in the line for the Paintball walk-on day! 01-09-2003
- Sinfest - Slick is more than ready to enter the field of paintball... but perhaps another weapon? 01-09-2003
- Schlock Mercenary - Targon hardly bats an eye while waiting in line for the Paintball games! 01-09-2003
- PvP Online - I'm not quite sure Skull has gotten the idea of Paintball... when you consider his weapons! 01-09-2003
- 21st Century Fox - Jack Black is doing a last check-up on his... optimized paintball-weapon! 01-09-2003
- Penny Arcade - You can get Gabe away from the screen, but not from the Gaming Guns! 01-09-2003
- Untitled - Twapa and Xheotris shows Doc their playlist and a contract for signing! 20-10-2003
- Namir Deiter - Tipper is arriving as a guest for the great Halloween party! 27-10-2003
- Asylum on 5th Street - Jin Wicked arrives at the Halloween Party in her usual style! 28-10-2003
- Chopping Block - Butch is sneaking in to leave his mark on the great Halloween Party! 28-10-2003
- Schlock Mercenary - Kevin Andraysen is making use of cloning technology for party-purposes! 29-10-2003
- Freefall - Sam Starfall gives it as a pickpocket at the great Halloween Party! 29-10-2003
- Sacred Pie - Roonas has visited the buffet and found a delicious slice of .... pie? 29-10-2003
- Polymer City Chronicles - Dr. Otto spills his problems to the other guests at the Party! 29-10-2003
- Penny Arcade - Tyche's idea of a Halloween party? Hiding behind the couch with a good game!! 29-10-2003
- Altermeta - T-Square is not one to be distracted by Doc's tales of battle! 29-10-2003
- Commander Kitty - Lt. Mittens enjoys the buffet-table... and Doc's problems with his sight! 30-10-2003
- Sabrina Online - Zig-Zag makes quite a rear figure at the Halloween Party! 31-10-2003
- Funny Farm - Mewn has joined the Halloween Party in good company! 31-10-2003
- Ozy & Millie - Llewellyn joins an interesting discussion on Dragonfire at the Halloween Party! 31-10-2003
- Dex Lives - Dex is listening to a talk about the uses of ligtherfluid! 31-10-2003
- The Asylumantics - The only thing Vlad obviously wants to know about Jade... is if she is hot! 31-10-2003
- PvP Online - Brent Siena is trading office-stories with other guests at the Halloween Party! 31-10-2003
- Sam & Fuzzy - Fuzzy is having a great time telling stories at the Party! 31-10-2003
- Goats - Fish looks up from his glass to give his agreeing reply! 31-10-2003
- Checkerboard Nightmare - Chex is on his way to get drunk at "Doc's" great Halloween Party! 31-10-2003
- Sluggy Freelance - Bun-Bun has the switchblade out at the Halloween Party! 31-10-2003
- The Suburban Jungle - Even at a Halloween party Leonard Lion ends up behind the bar! 31-10-2003
- Unshelved - Dewey gets a quite drink at mingles with the other partakers in the Party! 31-10-2003
- Cigarro & Cerveja - Among the myriad guests we find Cigarro having a smoke! 31-10-2003
- Real Life - Greg too is stopping by the Halloween party! 31-10-2003
- College Roomies From Hell!!! - Margerat is freaking out about guns... can it become any more scary? 31-10-2003
- Suburban Tribe - Alan has no idea of why he should be lectured about gund to a Halloween Party! 31-10-2003
- Jack - They think its just a great Halloween costume, but Jack is all his evil self! 31-10-2003
- User Friendly - Working in hell is, according to Greg, the same as tech-supporting! 31-10-2003
- Bohemials - Alex is looking quite meek though he is at the great Party! 31-10-2003
- Megatokyo - Piro has joined the Halloween Party... wonder if he is all himself? 31-10-2003
- Homestar Runner - The bulk of Pom-Pom is not so easy to overlook at the party! 31-10-2003
- Ozy & Millie - Carved into the pumpkin is the image of Llewellyn, drinking a nice cup of tea! 04-10-2004
- Penny Arcade - I would really like to know who had the interest in carving the Fruitfucker into that pumpkin! 08-10-2004
- Storm Corps - Mighty and metallic, Hippo is looming over the rest of the assembled guests! 20-10-2004
- Rockwood - Will Rockwood is merrily talking to the other guests before entering the party! 20-10-2004
- A Miracle of Science - Caprice, by a miracle of science, has slipped in among the guests in her starry self! 20-10-2004
- Dominic Deegan - Luna is obviously feeling ok among the line of guests! 20-10-2004
- Zebra Girl - Sandra keeps a little to the background among the guests! 20-10-2004
- Goobs - Scott is even using hand gestures to make his point in a friendly talk! 20-10-2004
- Exterminatus Now - Beer in hand, Eastwood keeps an ear in the conversation among the guests! 20-10-2004
- Something Positive - With a beer in hand and interesting guests around, Davan is enjoying the party? 20-10-2004
- Radioactive Panda - Looks like Eric has a little trouble with getting to his beer! 20-10-2004
- Freefall - Florence has also found her way to Doc's party, not amiss at all! 20-10-2004
- VG Cats - The party has hardly started, and Leo has already conquered the chips! 20-10-2004
- Angst Technology - Yaz seems to be well satisfied with being among the guests for the party! 20-10-2004
- Questionable Content - Almost overlooked, Pintsize has joined the guests massed for the party! 20-10-2004
- Polymer City Chronicles - Mistress Laura casts a dark shadow over the gathered guests! 20-10-2004
- Sluggy Freelance - When Riff and Doc are talking about the same type of weapons... it's time to duck! 22-10-2004
- Applegeeks - Hawk is getting his buttons (cap) pushed! 22-10-2004
- Ctrl+Alt+Del - Ethan really know how to push people's buttons... or caps! 22-10-2004
- Checkerboard Nightmare - Check the sign, Chex's getaway car of the 24-2-05 for sale! 28-02-2005
- Queen of Wands - The car that ran Kestrel down in the alternate ending is for sale! 28-02-2005
- Polymer City Chronicles - Vhaldis the Sorcerer arrives for the Halloween party, scaring Sandy! 24-10-2005
- Hellbound - Not going that far, Melenethriel decides to dress up as Zebra Girl for the Halloween Party! 25-10-2005
- Zebra Girl - As a demon, Sandra makes a mighty fine costume for Halloween! 25-10-2005
- Digger - Digger shows up for Halloween with the hat and ears of another famous critter! 25-10-2005
- Ozy & Millie - Ozy's hat and ears become the perfect Halloween headgear! 25-10-2005
- Radioactive Panda - Even dressed out as a Pet Professional, Al looks a little bit annoyed! 26-10-2005
- The Pet Professional - The Pet Professional logo worn by a Werewolf on Halloween? Nifty costume! 26-10-2005
- S.S.D.D - Taking it easy with the costume, Norman wears the shirt of another noted Big Bunny! 26-10-2005
- Kevin & Kell - It's not easy to see, but it IS Kevin's shirt that is worn by another rabbit for Halloween! 26-10-2005
- Schlock Mercenary - Sergeant Schlock doesn't like being stepped on, even while dressed as a pink kitty! 26-10-2005
- Something Positive - The Halloween costume of Choo-Choo fits the head of another strange creature! 26-10-2005
- Brigadier General John Stark - John Stark has stepped down and dressed out for Halloween! 26-10-2005
- The Devil's Panties - Jennie's shirt has become the Halloween costume of a famous statue! 26-10-2005
- Nodwick - Nodwick arrives at the Halloween party disguised with a cool mask! 28-10-2005
- Homestar Runner - A loyal henchman appears at the party wearing a Strong Bad mask! 28-10-2005
- Order of the Stick - Roy shows up at the Halloween party wearing the shirt of "that Round-Headed kid"! 28-10-2005
- Trivium Entertainment - Justin obviously sees a Halloween costume as only a shirt-change away! 28-10-2005
- Penny Arcade - Gabe's Shirt has ended up as a Halloween costume for a 4-armed demon! 28-10-2005
- Wapsi Square - Doc is trying to fill out the famous 8-Ball shirt, but doesn't quite succeed! 28-10-2005
- Dominic Deegan - Quilt is practicing his pirate impression to go with his Halloween costume! 28-10-2005
- Sluggy Freelance - The first version of Kara's timeless-space pirate garb is used by a Golem at Halloween! 28-10-2005
- Pandaxpress - The Panda shows up, wearing Dahlia's pink bow and looking for someone! 31-10-2005
- Suicide For Hire - Hunter is nice and friendly at the pretty, even dresed up inexplicably! 31-10-2005
- Starslip Crisis - Curator Vanderbeam's outfit becomes a costume at the Halloween party! 31-10-2005
- Gothbunnies - Dittany comes to the Halloween party dressed out in an... unlikely outfit! 31-10-2005
- WhoGirl - The WhoGirl's dress is good as a unique costume at a Halloween party! 31-10-2005
- Disassemblance - Ethan hangs around at the Halloween party as his usually cheery self! 31-10-2005
- NPWIL - Chris hangs out at the bar at the well-visited Halloween Party! 31-10-2005
- The Cynic - A very cynical shirt of Kevin's are worn by one of the guests at the party! 31-10-2005
- Applegeeks - Add a couple of antennas, and Eve is well dressed up for the Halloween occasion! 31-10-2005
- Melonpool - It's not easy to see, but it IS Melonpool-antennaes one of the guests is wearing! 31-10-2005
- Monica Furious - Monica takes part in the Halloween party... especially the one at the bar! 31-10-2005
- Girl Genius - Roger has been creative this year, and dressed up in full Jägermonster uniform! 31-10-2005
- Wapsi Square - "Grabbing the Headboard" is a great comment, though it usually applies to one situation! 30-11-2005
- Something Positive - Only one comic which has a boneless cat... but do they have a Fridge-Octopi? 30-06-2006
- Casey & Andy - Look like Roger, in his panic, adopts Casey and Andy's invention-naming convention! 03-07-2006
- Sluggy Freelance - Bandit will go on a date with Kiki in 2007? Interesting plot-twist actually! 02-01-2007
- Sinfest - The angel of Sinfest stops by to tell Doc the true meaning of Christmas! 02-01-2006
- Freefall - Jake and Pirta arrive at the party wearing costumes of Sam and Florence! 30-10-2007
- PvP Online - Why should you let a broken bridge stop you when you can pass in car PvP-style?! 29-02-2008
- Questionable Content - So somebody DID take up the Submacopter... and now Doc has one to play with! 19-12-2008
- Something Positive - One can wonder why the family had a painting of Davan hanging around? 25-12-2009
- Saturday Morning Breakfast Cereal - It might hanging crooked, but it IS a SMBC painting on the wall! 25-12-2009
- Girl Genius - Partly hidden by smoke, the painting of Boris hangs over the mantelpiece! 25-12-2009
Whiteboard cameos/references can be found in:
- 21st Century Fox - Seems like Doc put his toes down for this tank joining!! 26-09-2003
- Weak-End Warriors - Even extreme weather cannot keep Doc & Co. from the field! 02-11-2004
- Freefall - Looks like Doc has put up a couple of paintball adds up in the area! 17-01-2005
- Register One - When Doc makes some changes to you mallet, he sometimes goes a little overboard! 22-04-2005
- Schlock Mercenary - Wonder what Doc has done to have a boat named after the business of his? 20-10-2005
- RevolverComic.com - Seems like Doc has brought his mallet to make an impact on the situation! 15-10-2006
- Carry On - Doc appears at the door to deliver a warning by paintball-gun! 24-11-2006
- Evil Overlords United - Doc's dealings with his customers is under surveillance by the Evil Overlords! 23-04-2007
- Suicide For Hire - Yep, one can say that Doc knows how to get prober satisfaction out of his job! 24-06-2007
- CameoComic - Doc is mostly known for making cameos, but doing one of him would be fine! 24-08-2007
- PvP Online - Humanized Red bids welcome to his paintball field, and Doc enters a strip later! 28-02-2008
- Cross Time Cafe - Just hide the flames, with Doc around, there will soon be plenty for everyone! 04-03-2008
- The KAMics - The painting popularly know as "Doc Nickel's mother"... now found again! 12-12-2008
- Air Force Blues - For once I think Doc has encountered someone who is unshootable... for his safety! 06-02-2009
- Magical Misfits - Both Sandy and Pirta steps off the train in Shelterville, having a Baby Shower awaiting them! 16-03-2009
- Freefall - A videogame featuring Bandit and Doc? That got to be a sure seller! 02-04-2010
Webcomic artist appearances/references:
- Schlock Mercenary - So... Howard Tyler will admit the Whiteboard is the better comic? Yeah, right!! 02-01-2006
"Doc" Nickel cameos/references:
- The KAMics - Looks like Doc's many uses of cameos for Halloween have caught up with him! 04-09-2006