Cillian is a tall and powerfully built man. His black hair is short and neat and his beard is neatly trimmed. His tanned skin is unmarked by scars or blemishes. His dark blue eyes are set beneath slightly bushy brows.

He wears black and blue for the most part with silver as needed. He dresses well and is current on courtly fashions. His blade, Tyrwanldwyr, a beautiful heavy rapier designed with his strength and speed in mind, rests on his left hip. Myrnalladwyr, the matching parrying blade, rests on his right hip. When facing battle, he wears a set of well-made leather armor that is reinforced with metal studs.

Cillian is known for his rich deep voice. He is a skilled orator and a masterful singer. He has spent the past few years performing on stages across the Golden Circle. It is said that he was born to play the part of his uncle Corwin in the romantic opera The Fall and Rise of Amber.

Trump
Cillian's Trump shows him standing on the deck of a sailing ship. The sky and sea of Amber are in the background.

He stands with his right foot on what looks like an iron-bound wooden chest. He is wearing black leather armor with silver studs. The cloth beneath the leather is blue. He has a hooded cloak of black with blue trim. A small silver broach of the comedy and tragedy masks holds the cloak on his left. He holds his blades in a salute to the viewer.