CBS' comedy pilot Me, Myself & I is rounding out its cast.
Christopher Paul Richards (Billions) has joined the Boyhood-style comedy, The Hollywood Reporter has learned.
The Boyhood-like single-camera comedy examines one man's life over a 50-year span. It focuses on three distinct periods in the character, Alex's, life - as a 14-year-old in 1991, a 40-year-old in present day and a 65-year-old in 2042.
Richards will play Justin, teenage Alex's new stepbrother who is super-psyched to finally have a little bro - despite being just 39 days older.
He joins a cast that includes Bobby Moynihan, John Larroquette, Kelen Coleman, Mandell Maughan, Jaleel White, Sharon Lawrence and Brian Unger.
Read more: TV Pilots 2017: The Complete Guide
Galavant's Dan Kopelman penned the script and will exec produce the Warner Bros. TV pilot alongside Kapital Entertainment's Aaron Kaplan, Dana Honor and Randall Einhorn, who also will direct the pilot.
The casting keeps Richards in the CBS family. He has portrayed Damian Lewis' TV son in Billions, which airs on CBS' sister network Showtime, since season one. He is next set to make his film debut in Professor Marston & the Wonder Woman. He is repped by Paradigm and Principato-Young Entertainment.