''[[Super Mario World 2: Yoshi's Island]]'' introduced Kamek, the Magikoopa who raised Bowser from infancy and who has been seen interacting with him the most throughout the series. As seen in subsequent ''Yoshi'' series games and ''Mario & Luigi: Partners in Time'', Kamek takes great care of Baby Bowser and worries for his safety, with his devout loyalty continuing into Bowser's adulthood. Kamek's [[Psychopath]] line in ''Super Mario RPG: Legend of the Seven Stars'' even implies that he considers Bowser to be like a son to him, as despite his brain-washing by the enemies, he thinks "That's... my child?" when faced with Bowser in battle. The only time a rift has been shown between the two is in ''[[Mario Party Advance]]''; after winning a minigame Kamek explains that he took leave of Koopa Troop when Bowser disappointed him by taking the title of "Game Master", rather than earning it, although the two reconciled in the end. Aside from that incident, the two get along well, and Bowser seems to show much more respect to his elderly guardian than to any other of his henchmen.
Bowser mentions his [[List of Implied Characters#Bowser's father|actual father]] in few issues of the [[Nintendo Comics System]], with the implications being that he is a wanted criminal on the run. In ''Mario Party Island Tour'', it was revealed that his father was actually [[Dry Bowser]]. Similarly, Bowser's [[King Koopa's mother|mother]] does not appear in any games, but was introduced in ''The Super Mario Bros. Super Show!'' episode "[[Do You Princess Toadstool Take This Koopa...?]]", which showed her to be a bossy and bullying woman who resented her son for remaining a bachelor. Bowser also mentions a grandfather named [[List of Implied Characters#Poopa La Koopa|Poopa La Koopa]] in the ''Super Show'' episode "[[Butch Mario & the Luigi Kid]]", saying his motto was "Cheat, beat, and be merry!". In the "[[Raiders of the Lost Mushroom]]", Bowser says a paternal paternal "[[List of Implied Characters#King Koopa's great-great grandkoop|great-great grandkoop]]" of his built the [[Temple of Koopa]] to hide the [[Lost Mushroom]], which he then left to Bowser. In an episode of ''[[The Adventures of Super Mario Bros. 3]]'', Morton brings up one of the Koopalings' [[List of Implied Characters#The Koopalings' great grand-Koopa mama|great grandmothers]]. The family was shown to have a pet rabbit named [[Pookie]] in the Nintendo Comics System, which was often abused until its eventual escape from Bowser's Castle in the comic "[[Bowser Knows Best]]". In the Nintendo Adventure Book ''Flown the Koopa'', an unnamed Magikoopa stated to be Bowser's third cousin twice removed is featured as the main antagonist; this character also appears in the later books ''Unjust Desserts'' and ''Brain Drain'', though has only a minor role in both. Finally, in both an episode of the ''Super Show'' and the song "[[Ignorance is Bliss]]", Bowser mentions a [[List of Implied Characters#Bowser's sister|younger sister]] who is, according to him, a bookworm. Although it's unknown if she's actually real or he just mentioned her to go with the song's rhyme.
