Two pilots add cast

'Side' gig for Harner; 'Boldly' bulks up

Jason Butler Harner has joined the cast of Showtime's drama pilot "Possible Side Effects."

Meanwhile, two recurring players on "It's Always Sunny in Philadelphia," David Hornsby and Artemis Pebdani, have been added to Fox's single-camera comedy pilot "Boldly Going Nowhere," from the "It's Always Sunny" trio of Rob McElhenney, Charlie Day and Glenn Howerton.

Tim Robbins' "Side Effects" revolves around the Hunt family, which runs a pharmaceutical firm.

Harner will play the middle son, Silas, peacekeeper and perhaps the only sane member of the clan.

Jason London originally was tapped for the role. The recasting was done after the table read for the pilot this week. Harner is repped by Endeavor.

"Nowhere," from 20th TV, is about what happens day-to-day on an intergalactic spaceship helmed by the rogue Capt. Ron Teague (Ben Koldyke).

Hornsby will play Lt. Lance Grigsby, the captain's devoted right-hand man, who supports his most misguided orders while dealing with a cheating wife and a thieving brother-in-law back home. Hornsby, who also is a writer on "Boldly," is managed by Ted Schachter.

Pantheon-repped Pebdani plays Startemis, the female alien communications officer.