His most defining feature is his thick, floppy brown hair. At the start of his story, it is quite long and unruly—a physical sign of his desire to break away from rigid societal expectations. He is described as having a youthful, expressive face, soft features, and bright, attentive eyes that convey his curiosity and kind nature. Unlike most noblemen of his time who focus on politics or estate management, Tewkesbury is obsessed with plants, flowers, and nature. He has an extensive knowledge of foraging and botany, which surprisingly comes in handy during his adventures. He cares deeply about social reform, modernization, and doing what is right, rather than just following old family traditions. While he can be a bit naive and pampered at first, he possesses a genuine kindness and a sharp mind. He acts as an excellent emotional counterbalanc.

She has long, dark, often unruly curly hair that she frequently struggles to keep pinned up in the proper styles of the era. She has highly expressive, sharp eyes and a quick smile. Enola deeply resents the restrictive clothing women were forced to wear in the late 19th century. She finds bustles, corsets, and heavy layers physically limiting, especially when she needs to run, climb, or fight.

Sherlock is initially quiet, analytical, and distant, having spent years away from his childhood home. However, unlike his rigid older brother Mycroft, Sherlock grows to respect Enola’s intellect and independence. He transitions from being a distant relative to a supportive mentor and ally.