Superman - Diễn viên

Tyler Hoechlin ... Kal-El / Clark Kent / Superman /  "Bizarro" Superman

Elizabeth Tulloch ... Lois Lane

Jordan Elsass ... Jonathan Kent  / Jon-El

Alex Garfin ... Jordan Kent 

Emmanuelle Chriqui ... Lana Lang Cushing

Erik Valdez...Kyle Cushing

Inde Navarrette ... Sarah Cushing

Wolé Parks...Captain Luthor/Marcus/John Henry Irons

Adam Rayner ... Morgan Edge/Tal-Rho 

Dylan Walsh...Samuel Lane

Ben Cockell...Morgan Edge/Tal-Rho (19 tuổi)

Dylan Kingwell...Clark Kent (15 tuổi)

David Ramsey...John Diggle

Sofia Hasmik ... Chrissy Beppo, Editor of the Smallville Gazette 

Eric Keenleyside ... George Dean, The Mayor of Smallville

Kayla Heller...Tegan Wickhem

Ian Bohen ... Mitch Anderson

Tayler Buck ... Natalie Irons

Jenna Dewan ... Lucy Lane

Rya Kihlstedt ... Ally Allston

Samantha Di Francesco ... Candice Pergande