Short answers, pulled from the story.
Noritaka Funamizu commissioned Akira Yasuda to create Cammy as a new fighter for Super Street Fighter II: The New Challengers in 1993. Yasuda had previously designed Sagat and Morrigan Aensland before designing this character.
Cammy was once an assassin working for M. Bison's Shadaloo organization under the codename Killer Bee who lost her memories during a past operation. She became brainwashed by Bison's experiments and the Game Boy Advance version of Super Street Fighter II Turbo: Revival confirms she is a clone created from M. Bison's DNA.
Cammy joined Fortnite Battle Royale alongside Guile on the 7th of August 2021. This appearance marked another crossover event for the character after her inclusion in various fighting game rosters like Marvel vs. Capcom 2.
Australian pop singer Kylie Minogue portrayed Cammy in the 1994 live-action film Street Fighter directed by Steven E. de Souza. Minogue reprised the role in both Street Fighter: The Movie video games and appeared as a British intelligence officer serving Colonel Guile's aide-de-camp.
Capcom's official poll in 2008 asked which character fans most wanted in SFIV and Cammy gathered almost as many votes as all seven other characters combined. She won Capcom's previous poll of eighty-five characters for the fifteenth anniversary of Street Fighter II in 2005.