The real-world identities of these characters have been officially disclosed/acknowledged:

• Tani Takeshi (character) is Tani Takeshi (obvious)
• Osatou (character) is Osatou (obvious)
• Takana Shinno (character) is Takana Shinno (obvious)
• Warugaki (sk-ii) (character) is Warugaki (sk-ii) (obvious)
• Kurodani Yamame is Souma Mizuki
• Flandre Scarlet is Kurumizawa Tarou
• Koakuma from #1190 onwards is Kuresento
• Wakasagihime is Fun Bo

• Kogasa-san's father as himself
• Kogasa-san's mother as herself
• Kogasa-san's sister as herself
• Yasaka Kanako is Sanae's father
• Moriya Suwako is Sanae's mother

• #23 (post #795621) - #29: Kogasa-san at Fuji-Q Highland
• #41 (post #807537) - #81: Kogasa-san goes to America
• #82 (post #838026) - #87: Kogasa-san the lightweight drinker
• #91 (post #845181) - #111: Kogasa-san at Comic Market 79 (2010 Winter)
• #112 (post #860806) - #116: Kogasa-san goes to hatsumōde
• #119 (post #866767) - #123: Kogasa-san's tragedy at Comic Market
• #124 (post #870949) - #134: Kogasa-san at Siriyaki and Kusatsu Onsen
• #142 (post #884535) - #144: Kogasa-san's pinch at Crimson Square 5
• #145 (post #886408) - #181: Kogasa-san goes to Nikkō
• #182 (post #911614) - #193: Kogasa-san at the Madoka Magica convention "I Fear Nothing Anymore"
• #194 (post #918830) - #199: Kogasa-san at Tousan Festival and C-mus
• #200 (post #922366) - #205: Kogasa-san at Reitaisai
• #206 (post #926007) - #260: Kogasa-san at Atami, Kochi City, and Nagoya, 10 years ago
• #265 (post #963443) - #272: Kogasa-san goes to Kokumaro Milk
• #273 (post #968695) - #356: Kogasa-san and Sanae-san's marriage
• #364 (post #1035832) - #385: Kogasa-san at Comic Market 80 (2011 Summer)
• #386 (post #1049337) - #394: Kogasa-san gets sick
• #397 (post #1055815) - #404: Kogasa-san at Mt. Takao
• #412 (post #1067179) - #440: Kogasa-san at Comic Market 81 (2011 Winter)
• #447 (post #1095370) - #460: Kogasa-san at Hayabusa's public viewing

• #462 (post #1106911) - #489: Kogasa-san in Shizuoka
• #490 (post #1129276) - #494: Kogasa-san loves NicoNico Live karaoke
• #498 (post #1135528) - #586: Kogasa-san at Anime Boston
• #592 (post #1204486) - #598: Kogasa-san loves Niconico Live karaoke (2)
• #600 (post #1210342) - #604: Kogasa-san at COMITIA 100
• #605 (post #1214181) - #641: Kogasa-san in Sendai
• #642 (post #1242489) - #654: Kogasa-san at Tokyo Skytree
• #655 (post #1255484) - #678: Kogasa-san at Comic Market 82 (2012 Summer)
• #679 (post #1271419) - #701: Kogasa-san at Kurobe Dam
• #702 (post #1285558) - #709: Kogasa-san's memories of Matsumoto
• #710 (post #1290401) - #751: Kogasa-san at Kōrōmu 8, Osaka
• #754 (post #1323825) - #757: Hang in there, Naz-san
• #768 (post #1334882) - #791: Kogasa-san in Kōchi with Yuyuko-san
• #795 (post #1352256) - #811: Kogasa-san at Comic Treasure, Osaka
• #812 (post #1362568) - #829: Kogasa-san at Comic Market 83 (2012 Winter)
• #830 (post #1372720) - #853: Kogasa-san at Suwa
• #854 (post #1388008) - #856: Kogasa-san loves Niconico Live karaoke (3)
• #857 (post #1389770) - #873: Kogasa-san at Dai⑨shu Touhou Festival
• #873 (post #1400689) - #893: Kogasa-san at Nikkō (2)
• #895 (post #1416746) - #932: Kogasa-san in Aichi

• #933 (post #1445093) - #937: Kogasa-san meets Osatou-san
• #938 (post #1448832) - #957: Kogasa-san's 18-hour endurance karaoke
• #958 (post #1463131) - #985: Kogasa-san at Reitaisai 10
• #986 (post #1483412) - #1007: Kogasa-san in Okinawa
• #1009 (post #1498707) - #1028: Kogasa-san at Comic Market 84 (2013 Summer)
• #1030 (post #1512356) - #1084: Kogasa-san in Shikoku
• #1084 (post #1549929) - #1089: Kogasa-san's karaoke with Flan and Osatou-san
• #1090 (post #1553288) - #1103: Kogasa-san in Hokkaido
• #1104 (post #1563476) - #1133: Kogasa-san at Dai⑨shu Touhou Festival 8
• #1135 (post #1588345) - #1171: Kogasa-san at Kōrōmu 9, Osaka
• #1172 (post #1615493) - #1199: Kogasa-san at Chūshikoku Touhou Fest 1.5
• #1203 (post #1639584) - #1224: Kogasa-san in Morioka
• #1231 (post #1660947) - #1259: Kogasa-san's 18-hour karaoke with Yamame-san
• #1260 (post #1685954) - #1294: Kogasa-san's family vacation (Nikkō, Golden Week 2014)
• #1299 (post #1716314) - #1314: Kogasa-san at Miracle of the Woods 22
• #1315 (post #1729520) - #1340: Kogasa-san at Yūbari
• #1341 (post #1753829) - #1437: Kogasa-san's Trip to Western Japan
• #1438 (post #1839394) - #1449: Kogasa-san at Lyrica's Outdoor Barbecue
• #1450 (post #1850120) - #1455: Kogasa-san and Yuyuko-san go out for Ramen
• #1459 (post #1857896) - #1484: Kogasa-san at Tales of Ise

• #1485 (post #1881726) - #1504: Kogasa-san at Maizuru
• #1506 (post #1881726) - #1529: Kogasa-san at the Asahiyama Zoo in Winter
• #1531 (post #1922755) - #1565: Kogasa-san Strawberry Picking in Shizuoka
• #1568 (post #1957276) - #1607: Kogasa-san in Ōminato
• #1608 (post #1996200) - #1656: Kogasa-san goes to Taiwan
• #1663 (post #2046276) - #1711: Kogasa-san's 19-Hour Karaoke Tournament
• #1713 (post #2093599) - #1736: Kogasa-san at Hakurei Shrine Reitaisai in Taiwan
• #1739 (post #2115612) - #1757: Kogasa-san's UT Stone Chapter
• #1760 (post #2133585) - #1780: Kogasa-san at Comic Market 88 (2015 Summer)
• #1782 (post #2153015) - #1796: Kogasa-san at the Fuji Combined Firepower Exercise
• #1797 (post #2167792) - #1842: Kogasa-san's Okinawa Trip Chapter
• #1861 (post #2237023) - #1889: Kogasa-san in Sado
• #1890 (post #2266181) - #1933: Kogasa-san's 17-Hour Karaoke Tournament
• #1934 (post #2308704) - #1943: Kogasa-san gets a laser cutter
• #1944 (post #2317256) - #1960: Kogasa-san at Ultimate Touhou Kamui Fest 4
• #1962 (post #2333556) - #1963: Kogasa-san in Nara
• #1964 (post #2336347) - #2026: Kogasa-san and Sanae go to Taiwan
• #2028 (post #2400295) - #2033: Kogasa-san and the Stuck Door
• #2044 (post #2416402) - #2064: Kogasa-san in Oarai
• #2065 (post #2437466) - #2095: Kogasa-san goes to Hong Kong

• #2098 (post #2470986) - #2101: Kogasa-san and the Kumamoto Astonishment Arc
• #2117 (post #2489715) - #2139: Kogasa-san and Mizu Shingen Mochi
• #2140 (post #2512182) - #2184: Kogasa at the Onbashira Festival
• #2185 (post #2552903) - #2214: Kogasa-san at the Super-Kamiokande
• #2216 (post #2582121) - #2229: Kogasa-san and the Abrupt Okinawa Trip
• #2230 (post #2597212) - #2256: Kogasa-san and the Aomori Trip
• #2257 (post #2624002) - #2265: Kogasa-san tries out Playstation VR
• #2266 (post #2633293) - #2274: Kogasa-san and the Home Garden
• #2275 (post #2642334) - #2281: Kogasa-san and the Convention Overlap
• #2283 (post #2650959) - #2292: Kogasa-san on the JAL Maintenance Facility Tour
• #2294 (post #2662291) - #2308: Kogasa-san at the Hakodate Convention
• #2310 (post #2679228) - #2345: Kogasa-san's Fifth 18-hour Karaoke Tournament
• #2347 (post #2718383) - #2349: Kogasa-san's First Contact with Karaoke
• #2350 (post #2721441) - #2357: Kogasa-san at Tama Animal Park
• #2360 (post #2732555) - #2371: Kogasa-san and Sanae-san at Kachōen
• #2373 (post #2746209) - #2407: Kogasa-san's Adventures in Taiwan
• #2409 (post #2783372) - #2421: Kogasa-san and Ran-san at Nakanoya Suimusou
• #2422 (post #2796755) - #2451: Kogasa's Family Vacation in Atami
• #2452 (post #2829895) - #2460: Kogasa-san and the Veranda Starling
• #2462 (post #2840827) - #2464: Kogasa-san and Yuyuko-san at an Unnamed Restaurant

• #2465 (post #2844667) - #2473: Kogasa's Friends-Only 18-hour Karaoke
• #2474 (post #2854013) - #2482: Kogasa-san at the Tōbu Zoo (feat. Keine-sensei)
• #2483 (post #2864369) - #2485: Kogasa-san Collecting KF Beer Mugs
• #2487 (post #2869240) - #2499: Kogasa-san's Trip to Kyoto
• #2500 (post #2884249) - #2502: Kogasa and the Okinawa-Exclusive KF Merchandise
• #2503 (post #2887794) - #2582: Kogasa-san and Sanae-san Spend a Week in Hokuriku
• #2586 (post #2976938) - #2605: Kogasa-san at Kōrōmu 14, Osaka
• #2606 (post #2996757) - #2608: Kogasa and Co. at KEK
• #2609 (post #2999602) - #2613: Kogasa-san and Yuyuko-san Try out Candycraft
• #2614 (post #3005702) - #2653: Kogasa-san's Extreme Convention Trips
• #2654 (post #3050122) - #2661: Kogasa-san's TRPG Experience
• #2662 (post #3058276) - #2684: Kogasa-san and Ran-san Go to Kōchi
• #2685 (post #3085830) - #2698: Kogasa-san's 6th 18-hour Karaoke Tournament
• #2699 (post #3104259) - #2701: Kogasa-san and the Jammed Rice Cooker Lid
• #2707 (post #3113957) - #2710: Kogasa-san vs. Ransomware on Papa-gasa's Laptop
• #2712 (post #3119515) - #2734: Kogasa and Friends in Shizuoka
• #2735 (post #3146893) - #2780: Kogasa-san at Gensokyo All Over in Taiwan
• #2782 (post #3198244) - #2837: Kogasa-san and Sanae-san's Travels in Western Japan
• #2843 (post #3260817) - #2852: Kogasa-san's Hunt for a Replacement Car-Nav
• #2853 (post #3273366) - #2866: Kogasa-san and the Return of the Stones of Pain

• #2867 (post #3286945) - #2873: Kogasa Makes a Cubicle for Her Garbage Processor
• #2874 (post #3294236) - #2881: Kogasa-san's Virtual Girl Avatar
• #2882 (post #3302256) - #2912: Kogasa-san's Trip to Okinawa
• #2916 (post #3336613) - #2918: Kogasa-san Purchases a 3D Printer
• #2921 (post #3341615) - #2945: Kogasa-san's Kanazawa Expedition
• #2946 (post #3371740) - #2953: Kogasa-san's Tales from When She Lived Alone
• #2954 (post #3381102) - #2994: Kogasa-san and Naz-san in Western Japan
• #2995 (post #3423988) - #3006: Kogasa-san and Ran-san in Kyushu
• #3008 (post #3436886) - #3011: Kogasa-san's Custom Broadcast Set
• #3013 (post #3442071) - #3016: Kogasa's Experience with Growing Her Hair out
• #3019 (post #3448134) - #3047: Kogasa-san's Journeys in Ōminato
• #3050 (post #3479868) - #3071: Kogasa-san at Gensokyo All Over in Hong Kong
• #3075 (post #3505785) - #3089: Kogasa-san's DIY Car Repairs
• #3091 (post #3520683) - #3097: Kogasa-san Gets Dragged into Film Strip Gacha
• #3099 (post #3528091) - #3118: Kogasa-san at Miracle of the Woods 29
• #3122 (post #3550532) - #3133: Kogasa-san goes to Suwa with a Drone
• #3134 (post #3562380) - #3136: Kogasa-san's Homemade Peanut Butter
• #3137 (post #3565370) - #3144: Kogasa-san Gets an Oculus Rift from QB-san
• #3146 (post #3574497) - #3166: Kogasa-san and Co. in Hokuriku
• #3167 (post #3594533) - #3178: Kogasa-san's Second 3D Printer

• #3184 (post #3611702) - #3205: Kogasa-san and the Ōya Quarry Tour
• #3206 (post #3633882) - #3216: Kogasa-san Tries to Make a Ventilation Fan
• #3218 (post #3645645) - #3240: Kogasa-san's Trip to Kōfu
• #3241 (post #3666720) - #3247: Kogasa-san at Kōrōmu During a Typhoon
• #3250 (post #3675926) - #3255: Sanae-san's Kitchen Garden
• #3256 (post #3681680) - #3263: Kogasa-san and Friends Tour the Shirase
• #3264 (post #3689751) - #3270: Kogasa-san's (Aborted) Trip to Hong Kong
• #3271 (post #3696487) - #3297: Kogasa-san at Gensokyo All Over 5
• #3300 (post #3725215) - #3324: Kogasa-san's DIY Altimeter
• #3324 (post #3751119) - #3348: Kogasa-san Becomes a Certified Electrician
• #3349 (post #3781030) - #3353: Kogasa-san Goes to Donate Blood
• #3354 (post #3787717) - #3359: Kogasa-san and Co. at Furusato Matsuri Tokyo
• #3364 (post #3800163) - #3407: Kogasa's Spring 2020 Trip to Western Japan
• #3409 (post #3858678) - #3413: Kogasa-san's Bathroom Ventilator Fan Repairs
• #3414 (post #3866229) - #3419: Kogasa-san's DIY Remote Plant Waterer
• #3423 (post #3879704) - #3445: Kogasa-san and Ran-san in Hokkaido
• #3446 (post #3914559) - #3582: Kogasa-san's Stories of Being a Manga Artist
• #3583 (post #4131970) - #3587: Kogasa-san Tries out Ring Fit Adventure
• #3588 (post #4140134) - #3604: Kogasa-san Goes to Okinawa
• #3606 (post #4169385) - #3609: Kogasa-san and Sanae-san's VR Experiences

• #3610 (post #4176392) - #3648: Kogasa-san and Co. (Re)visit Kurobe Dam
• #3651 (post #4242717) - #3668: Kogasa-san's DIY Roof Repairs
• #3669 (post #4272669) - #3674: Kogasa-san Cleans Her Keyboard
• #3675 (post #4286276) - #3691: Kogasa-san Upgrades Her Remote Plant Waterer
• #3692 (post #4316079) - #3697: Kogasa-san's Home Karaoke Setup
• #3698 (post #4327210) - #3703: Kogasa-san and Sanae-san Make a Christmas Cake
• #3704 (post #4338093) - #3741: The Story of Kogasa-san's Current Residence
• #3743 (post #4411407) - #3751: Kogasa-san vs. Kid-Sis-gasa's Laptop
• #3752 (post #4429159) - #3772: Kogasa-san at Shizuoka Reitaisai
• #3773 (post #4463402) - #3775: Kogasa-san vs. Hecatia-san's LCD Tablet
• #3776 (post #4495876) - #3801: Kogasa-san and Naz-san at Yarinsai in Hiroshima
• #3802 (post #4674213) - #3813: Kogasa-san and the Sudden Itō Hot Spring Trip
• #3814 (post #5581263) - #3833: Kogasa-san's Dieting Chapter