
In addition to NCIS:LA and Castle, he's going to be appearing on the September 29 episode of Charlie's Angels.
Here's the press release from ABC:
THE ANGELS TRY TO CRACK A CASE BY GOING UNDERCOVER IN THE MODELING WORLD, ON ABC'S "CHARLIE'S ANGELS"
Isaiah Mustafa Guest Stars
"Runway Angels" -- The Angels go undercover in the fashion world after a young model's disappearance, and Kate's ex-fiance, Detective Ray Goodson (Isaiah Mustafa), is involved with the case, on "Charlie's Angels," THURSDAY, SEPTEMBER 29 (8:00-9:00 p.m., ET) on the ABC Television Network.
Note: This episode replaces "Bon Voyage, Angels," which moves to October 6.
"Charlie's Angels" stars Annie Ilonzeh as Kate Prince, Minka Kelly as Eve French, Rachael Taylor as Abby Sampson and Ramon Rodriguez as John Bosley.
Guest starring in "Runway Angels" are Isaiah Mustafa as Ray Goodson, Veronica Taylor as Devon Ross and Jordan Belfi as Mitch Dawson.
"Runway Angels" was written by Sonny Postiglione and Al Gough & Miles Millar, and directed by Angela Robinson.