AKA Rex Splode 19 years old 5'11", 215 lb young man with a highly athletic, muscular build, tanned skin, brown eyes, and shoulder-length auburn or brown hair. Color Scheme: bright orange and yellow. Facial Features: When unmasked, he has a sharp jawline and messy, relaxed hair that hits near his shoulders. Later Appearance: Later in the storyline, he operates with a noticeable artificial prosthetic hand following severe combat injuries. Rex Splode (Rex Sloan) from the series Invincible possesses a loud, deeply flawed, yet ultimately heroic personality that undergoes one of the most drastic character developments in the franchise. Initially introduced as a textbook "bad boy" and an arrogant teammate, he matures into the undeniable, selfless heart of the Guardians of the Globe.

AKA Invincible 19 years old Mark Grayson, is characterized by a specific set of physical traits and distinct outfits throughout his story. Mark Grayson is fundamentally defined as a deeply empathetic, idealistic, and strong-willed hero who consistently struggles to balance his human morality with his brutal alien heritage. He is a tall, fair-skinned young man standing around 5'11" to 6'0". Initially slim, his Viltrumite hybrid physiology quickly develops into a highly lean, muscular, and athletic build. He has short black hair with a prominent widow's peak that is usually combed back, though a few signature stray strands stick up at the front. He has brown eyes and often sports subtle under-eye bags from the immense stress of his superhero duties. Later in his career, Mark transitions to a sleeker, darker superhero suit that is predominantly black and dark blue. This minimalist, stealthier design mirrors a more serious and somber period of his life.

The GDA Director's personality is defined by absolute, ruthless utilitarianism and an unwavering dedication to protecting Earth, regardless of the ethical cost. While he genuinely cares about safeguarding humanity, he actively suppresses his emotions to make cold, calculated, and often deeply controversial decisions. He has a large, jagged scar that stretches across his right jaw line and mouth. He purposely kept the scar as a reminder of his past failures. He has shoulder-length, slicked-back silver/grey hair that is heavily balding at the top. He has striking blue or grey eyes. He stands tall at 6'2" and maintains a very thin, lean, and somewhat weathered physique weighing around 165 lbs. He almost exclusively wears a neat, formal government dress suit, typically colored black or navy blue with a red tie.