The 100 (TV series) . The series follows a group of teens : Clarke Griffin ( Eliza Taylor ) , Bellamy Blake ( Bob Morley ) , Octavia Blake ( Marie Avgeropoulos ) , Jasper Jordan ( Devon Bostick ) , Monty Green ( Christopher Larkin ) , Raven Reyes ( Lindsey Morgan ) , Finn Collins ( Thomas McDonell ) , John Murphy ( Richard Harmon ) , and Wells Jaha ( Eli Goree ) as they are among the first people from a space habitat , `` The Ark '' , to return to Earth after a devastating nuclear apocalypse ; the series also focuses on Dr. Abby Griffin ( Paige Turco ) , Clarke 's mother ; Marcus Kane ( Henry Ian Cusick ) , a council member on the Ark ; and Thelonious Jaha ( Isaiah Washington ) , the Chancellor of the Ark and Wells ' father .
The 100 follows characters who are students.