TVLine Items: JAG Vet to Scorpion, Amy Adams' SNL Promos and More

David James Elliott

Former JAG star David James Elliott is returning to the network he once called home.

Elliot will guest-star in an upcoming episode of Scorpion, according to The Hollywood Reporter, playing a former Secret Service agent named Bruce Jones. When terrorists threaten to break into a nuclear missile silo, Bruce turns to the Scorpion gang to recover an important, 15-year-old memory.

It’s possible Bruce could become a recurring character.

Ready for more of today’s newsy nuggets? Well…

* Dax Shepard (Parenthood) will pay a second visit to NBC’s About a Boy in the Jan. 13 episode, according to THR. Shepard made his first cameo in Season 1.

* NBC has released promos for Amy Adams’ upcoming turn as Saturday Night Live host. Who knew the Enchanted star was also a One Direction superfan?

* Julian McMahon (Nip/TuckCharmed) and Daisy Betts (Chicago Fire) have joined the cast of Syfy’s Childhood’s End, premiering in 2015. Based on Arthur C. Clarke’s novel, the six-hour miniseries finds a group of powerful aliens assuming control of earth, stripping mankind of its culture and identity.

* ABC’s The Great Christmas Light Fight has been renewed for a third season, airing in 2015.

* A&E Network’s Nightwatch will premiere Thursday, Jan. 22, at 10 pm. Produced by Dick Wolf (Law & OrderChicago Fire), the new reality series follows elite teams of late-night emergency responders in New Orleans.