Agents of SHIELD's Robert Gonzales will know how to show his pearly whites.

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Edward James Olmos is taking the Marvel code of secrecy very seriously, but the Battlestar Galactica actor did give Comic Book Resources one infuriatingly cryptic teaser regarding his new Agents of SHIELD character.

"Well, I'll just put it to you this way: When he smiles, the whole world smiles with him," Olmos said.

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Is Gonzalas a hero? A villain? An Inhuman? SHIELD's three-month hiatus has fans itching for news, and this enigmatic riddle may keep Marvelites scratching their heads until Olmos' character makes his debut.

When Gonzalas does enter the storyline, he will interact with all of the series' main characters, from the Director of SHIELD (Clarke Gregg) on down.

"I'm working with everyone," Olmos told Comic Book Resources. "I can't really say too much about [Clarke Gregg], because they already told me what not to do."

Find out more when Agents of SHIELD returns to ABC on March 3 at 9 p.m. ET. Picking up not long after Skye's (Chloe Bennet) Terragenesis (see video below), the midseason premiere will be titled "Aftershocks."

Tags: Marvel's Agents of S.H.I.E.L.D. television ABC Marvel