Two days after its panel at Comic-Con, ABC’s Once Upon A Time unveiled two more actors joining the series for its Frozen-themed storyline. Veteran character actor John Rhys-Davies, known for roles in the Lord Of The Rings trilogy and Raiders Of The Lost Ark, will voice Pabbie the Troll King, and Tyler Jacob Moore (Shameless, GCB) will play the scheming Prince Hans. OUAT producer Adam Horowitz tweeted the news of both castings today. At the San Diego Convention Center on Saturday, the crowd was shown a clip of OUAT’s new season with Frozen characters Elsa and Anna (Georgina Haig and Elizabeth Lail) leaving flowers at the grave of their parents. The ensemble fantasy series returns for Season 4 on September 28.