103 Caston
Name Caston
Actor Katie Keating
Debut "Pilot"
Origin Caprica
Profession Student Prefect
Status Living
Caston is a student at Athena Academy who serves as a prefect. She found Zoe Graystone sitting in a stall in a restroom using a holoband to enter the Virtual World when she was supposed to be in class. She reported Zoe for breaking school rules. ("Pilot")

After it is revealed that Zoe was the one who blew up the MAGLEV train, Lacy Rand is heckled at school because she was Zoe's best friend. Caston jostles her at the end of a school day, then "apologizes." ("Reins of a Waterfall")