"Arrow" fans are going to see a lot more of Curtis Holt next season.
Introduced in the second episode of this season, the computer genius has not only helped Felicity Smoak save Palmer Technologies, he's discovered the secrets of the Arrowcave.
There have been nods to DC Comics' Michael Holt, aka Mr. Terrific, throughout the fourth season of "Arrow." Perhaps Kellum's expanded role will allow producers to further explore that connection.
"Arrow" airs Wednesdays at 8 p.m. ET/PT on The CW.