Akane Fudo stands 165 centimeters tall, ranking among the shortest members in his idol group alongside Ryuji. He maintains a strong, athletic frame despite his stature. His short wavy orange hair is often clipped back, allowing bangs to frame his face. His eyes feature orange hues with blue tints, complementing a slightly darker complexion than his unit peers. Sportive clothing, frequently hoodies, defines his typical attire.

His personality blends overt enthusiasm with underlying insecurities. Akane exhibits a gentle, approachable demeanor that eases communication with others. A powerful drive to make people smile motivates him, often prompting him to volunteer help during problems. While talkative, he avoids lengthy conversations due to discomfort. Deep-seated feelings of inferiority persist, particularly towards the group THRIVE. This stems from his initial selection for THRIVE during Bambi trainee days, followed by removal before debut after producer Daikoku Shuuji deemed him unsuitable. This rejection created lasting self-doubt about his abilities and efforts, despite his subsequent debut as leader of KiLLER KiNG. He also reacts angrily to teasing about his height.

Raised primarily by his grandfather after his mother's early passing, Akane grew up in his grandfather's judo dojo. There, approximately ten years before his idol career, he met Miroku Shingari, who became his closest childhood friend. Both trained extensively in judo under his grandfather, with Akane achieving a black belt and maintaining exceptional physical endurance. Their shared interest in an idol program featuring Bambi Project trainees sparked Akane's persuasion of the initially hesitant Miroku to audition with him. Both successfully joined Bambi, commuting from Shizuoka to Tokyo for training. This period solidified their mutual reliance and motivation.

As leader of KiLLER KiNG, Akane maintains a profoundly close bond with Miroku, marked by their shared history, mutual understanding of regrets related to the Bambi era and THRIVE's formation, and occasional conflicts like competitive arguments over extra noodle servings during trainee days. He interacts warmly with unit members Yuduki and Haruhi Teramitsu, sometimes buying them small gifts like large rice balls when concerned for their well-being.

His interactions with B-PROJECT A&R staff member Tsubasa Sumisora are characterized by mutual comfort and deep care. He feels at ease around her, sometimes exhibiting childlike behavior or acting recklessly to appear impressive. Akane readily blushes or becomes shy when she compliments him and shows consistent concern for her health and workload, often considering preparing her favorite dishes or purchasing small appreciation gifts. He frequently consults her on difficult matters and includes her in his thoughts during events. Indications suggest unconscious romantic feelings, highlighted during a birthday celebration where he expressed significant happiness over a private celebration with her after she missed the group party due to work.

Narrative developments, such as in the anime "Zecchō Emotion", showcase Akane's judo skills and determination. He actively requests to perform his own dangerous stunt work during the "KING of CASTE" movie shoot, driven by a desire to contribute fully despite safety concerns from others, reflecting his persistent trait of giving utmost effort in response to lingering insecurities.

Personal trivia includes his love for hamburgers, omurice, and adrenaline-chasing amusement park rides, contrasting with a noted dislike for vegetables. He expressed interest in trying beer with fried chicken while watching sports upon reaching legal age. His representative animal is a pig, associated with a personal monster/mascot named "Akapi".