The upcoming “Arrow” episode, “Time of Death,” introduces William Tockman — the Clock King — as a nemesis for Felicity (Emily Bett Rickards). How much stress will this bring for the resident computer genius? Three videos previewing the episode make it clear: a lot.

Played by Robert Knepper, the Clock King turns out to be a computer genius and hacker who can even rival Felicity when it comes to messing with the infrastructure of Starling City. Executive producer Marc Guggenheim points out in the video above that Tockman shows up right when Felicity is already feeling insecure about her place with Oliver (Stephen Amell) after Sara (Caity Lotz) returns.

An extended look at the bank robbery scene in which the Clock King hijacks the Arrow team feed shows just how much Felicity may have to worry about this guy.

At least Felicity has Diggle (David Ramsey) to support her while Oliver is off reintroducing Sara to the Starling City world. It looks like she’s going to need it.

“Time of Death” airs Wednesday (Feb. 25) at 8 p.m. ET/PT on The CW.

Posted by:Laurel Brown