Supergirl Casts iZombie's Rahul Kohli as Potential Villain

Kohli will guest-star in Episode 18 as Jack Spheer, a tech genius whose latest medical innovation, if successful, will eradicate major illnesses, Entertainment Weekly reports.

[...] don't expect this to be a retread of Kohli's iZombie character -- a coroner attempting to eradicate zombie-ism who's still pining for his ex -- since there's a good chance we'll see Jack Spheer develop into a full-blown villain!