 Blessed spiderM | | Spiders | 39 | 4 | |
 Bronze dragonM | | Metal Dragons | | | |
 Bryophyta | | Moss Giants | 128 | 16 | |
 Callisto (PvM Arena)M | | Bears, Bosses | 470 | 50 | |
| Cave bugM | | Cave Bugs | | | |
 Cerberus (Deadman)M | | Hellhounds, Bosses | | | |
 Cerberus (Echo)M | | Hellhounds, Bosses | 477 | 79 | |
 Chaos Elemental (PvM Arena)M | | Bosses | 305 | 28 | |
 Chuck upM | | Trolls | 98 | 9 | |
 Cockatrice (unused)M | | Cockatrice | 37 | 5 | |
 Commander Zilyana (Deadman)M | | Bosses | 596 | 27 | |
 Commander Zilyana (PvM Arena)M | | Bosses | 596 | 27 | |
 Corrupt Lizardman (Nightmare Zone)M | | Lizardmen | | | |
 Count Draynor | | Vampyres | 34 | 3 | |
 Count Draynor (Nightmare Zone)M | | Vampyres | | | |
 CrabM | | Crabs | | 3 | |
 CrocodileM | | Crocodiles | 63 | 6 | |
 Crypt spiderM | | Spiders | 56 | 6 | |
| CyclopsM | | Hill Giants | | | |
 Daddy's special waterM | | Trolls | 125 | 27 | |
| Dagannoth (Waterbirth Island)M | | Dagannoth | | | |
 Dagannoth Prime (Deadman)M | | Bosses, Dagannoth | | 26 | |
 Dagannoth Prime (Echo)M | | Bosses, Dagannoth | 454 | 49 | |
 Dagannoth Prime (PvM Arena)M | | Bosses, Dagannoth | 303 | 50 | |
 Dagannoth Rex (Deadman)M | | Bosses, Dagannoth | | 26 | |
 Dagannoth Rex (Echo)M | | Bosses, Dagannoth | 454 | 48 | |
 Dagannoth Rex (PvM Arena)M | | Bosses, Dagannoth | 303 | 26 | |
 Dagannoth Supreme (Deadman)M | | Bosses, Dagannoth | | | |
 Dagannoth Supreme (Echo)M | | Bosses, Dagannoth | 681 | 26 | |
 Dagannoth Supreme (PvM Arena)M | | Bosses, Dagannoth | 303 | 30 | |
 Damien LeucurteM | | Vampyres | 204 | 20 | |
 Dark AnkouM | | Ankou | 95 | 8 | |
 Dark warrior | | Dark Warriors | | | |
 DawnM | | Bosses, Gargoyles | 228 | 15 | |
 Deadly red spider | | Spiders | 34 | 3 | |
 Death wingM | | Bats, Ghosts | 83 | 8 | |
 Demon of BalanceM | | Black Demons | 202 | 43 | |
 Demon of DarknessM | | Black Demons | 202 | 43 | |
 Demon of LightM | | Black Demons | 202 | 43 | |
 DessousM | | Vampyres | 139 | 19 | |
 Dharok the WretchedM | | Bosses | 115 | 29 | |
 Dharok the Wretched (Deadman)M | | Bosses | 666 | 29 | |
| Duck | | Birds | 1 | 0 | |
 Duckling | | Birds | 1 | 0 | |
 Duke (monkey)M | | Monkeys | 149 | 14 | |
 Dungeon ratM | | Rats | 12 | 2 | |
| DuskM | | Bosses, Gargoyles | | | |
| Dust devilM | | Dust Devils | | | |
 Flesh Crawler | | Flesh Crawlers | | 1 | |
 General Graardor (Deadman)M | | Bosses | 624 | 60 | |