Crossovers
- None

Cameos/References
- Girls with Slingshots - There's no doubt about it being McPedro on the table in the background! 05-05-2008
- Looking For Group - In the background we see a lot of people cosplaying as the whole crew from LFG! 07-05-2008
- Girls with Slingshots - Jamie and Hazel do not fall for Rayne's melon salespitch for a threesome! 26-05-2008
- Dr. McNinja - Suddenly the view through Rayne's window is taken straight from Dr. McNinja on adventures! 27-03-2009
- Applegeeks - Second panel, and its suddenly Applegeeks we are looking at through the window! 27-03-2009
- Red Vs. Blue - When you in the third panel look out through the window, you spot Red vs. Blue toy-shopping! 27-03-2009
- 8-Bit Theater - Flashback to the first 8-Bit Theater strip can be seen through the window in the last panel! 27-03-2009
- Legend of Bill - Through the 1st panel window we see the trio from Legend of Bill surrounded! 28-03-2009
- Sinfest - Window of panel 2 becomes a gate through which to watch the going-ons in Sinfest ! 28-03-2009
- Dinosaur Comics - John should watch his steps... though usually the T-Rex would be stepping on him! 28-03-2009
- Evil Inc. - Panel 3 window suddenly opens into the happy atmosphere Evil Inc. provides! 28-03-2009
- Kububuri - A Kububuri panorama unfolds outside the window of panel 4! 28-03-2009
- xkcd - With a head full of math you should think an XKCD-stickman should be easy to recognize? 01-04-2009
- Cyanide & Happiness - Guess some sticks have a one-track mind... but at least he is easy recognizable too! 01-04-2009
- Girls with Slingshots - If Rayne has found Hazel to be on his own wavelength, it's time to fear Ragnarok! 02-04-2009
- Octopus Pie - Along with other characters, Eve arrives in the apartment soon to be under attack! 02-04-2009
- Something Positive - As usua Davan knows whats going on... but in the comic and with the working of God! 02-04-2009
- Questionable Content - That part IS a weak point in the plot, and off course Faye is the one to comment on it! 02-04-2009
- Penny Arcade - Gabe and Tycho draws the first blood in the war... though they only got Rayne's clone! 03-04-2009
- PvP Online - No longer working for a Gaming Comic, Skull can now side with the apartment-characters! 04-04-2009
- Looking For Group - And with his trademark fiery blast, Richard takes out a couple of the opposition! 06-04-2009
- No Reason Comics - Jamie & Murph cringes from the sight of the latest death in the apartment! 07-04-2009
- Sinfest - Keeping his cool about him, as usual, Slick surveys the latest deaths and damage! 07-04-2009
- Ctrl+Alt+Del - Ethan and Zeke starts the assault on the apartment but are stopped short by... Audiobot!! 09-04-2009
- VG Cats - Looks like Leo got ahead of himself in the battle of webcomic characters! 10-04-2009
- Goblins - With his true bravado and spirit, Thac0 jumps into the fray, dealing damage to the opponents! 10-04-2009
- Looking For Group - The majestic Audibot does not deter Krunch who goes straight to the root! 10-04-2009
- Legend of Bill - A true warrior princess, Gina meets her opponent in the middle of the battlefield! 10-04-2009
- Starslip Crisis - Vanderbeam looks not entirely well having been drawn into a majestic webcomic battle! 10-04-2009
- 8-Bit Theater - It's an epic battle between webcomic characters, and off course Black Mage will be there! 10-04-2009
- PvP Online - Guess the opponents didn't expect Lol Bat to show up in the thick of the battle! 10-04-2009
- The Book of Biff - Biff engages the enemy despite the odds, bringing in his own form of weapons! 10-04-2009
- Nodwick - The battle may be raging around him, but for once Nodwick can sit on the stairs and relax! 10-04-2009
- Dr. McNinja - Having spotted another martial arts opponent, Dr. McNinja jumps to attack! 10-04-2009
- Red Vs. Blue - Not being in such a hurry, Geoff takes to the background and approaches the opponents! 10-04-2009
- Templar Arizona - Looks like Ben has found a secluded place from where to watch the others fighting! 10-04-2009
- Questionable Content - Caught in the battlerage, Pintsize takes on his opponent in the battle of characters! 11-04-2009
- Evil Inc. - Keeping to the outskirts of the battle, Dr. Haynes surveyes the happenings! 11-04-2009

Least I Could Do cameos/references can be found in:
- The Tao of Geek - Looks like Rayne has nothing against having a picture taken with a monster! 31-07-2003
- Radioactive Panda - "Greased I Could Do" is more pun-like, but the sign nails the reference down! 31-07-2006
- SailorSun.org - When trying to avoid a womanizer... Rayne is perhaps not the one you want to meet! 30-09-2006
- Candi - Looks like Ashley is enjoying her time in the class of children Candi volunteers in! 10-10-2006
- SailorSun.org - So IDS has openings for new employers? Somehow I think Bay is right there! 07-11-2006
- Evil Overlords United - Lhama-time in Least I Could Do i being monitored by the Overlords! 12-07-2007
- Times Like This - Even though Rayne is such an ass, Bethany enjoyes reading Least I Could Do! 21-11-2008
- For Your Eyes Only - When you are a gril you are pretty much better off with Rayne tied up GOOD! 07-02-2009
- Times Like This - When someone lends Rayne a Timemachine... it opens up to new possibilties for him! 27-03-2009
- Overcompensating - Is the way to popularity being a "Professional Webcomic" like... Least I Can Do? 02-04-2009
- Better Than Cheeses - It's true... when Rayne goes down on his female counterpart, the planet is doomed! Strip 353
- The Justinian Empire - Stands to reason that the first Rayne Summers does is finding a girl to hit on! Strip 2043

Webcomic artist appearances/references:
- Real Life - What appears to be Greg Dean himself can be seen lurking around in the background! 10-05-2008