Shiden Iida, Personal Name Cyclops, is the former leader of the Queen's Knights, the squadron Lena led after the Spearhead Squadron departed for their final mission. After the collapse of San Magnolia, she is now the captain of the Eighty-Sixth Strike Package's Brisingamen unit, in charge of defending headquarters.
Shiden is described as a taller than average woman with light brown skin and short reddish hair. Her most distinguishing feature is her heterochromia; her left eye's iris is white and while her right is a dark indigo. Her Personal Name originates from this feature, as she appears to only have one working eye.