Credit: Jordan Strauss/; Jamie McCarthy/

Edward Cullen can sparkle, but that doesn't mean he's a diva!

Robert Pattinson's Breaking Dawn costar Chaske Spencer says the Twilight hunk and girlfriend Kristen Stewart are "very down to earth." 

"That's what would surprise people," Spencer, 36, told Us Weekly Thursday at the ESPN 3rd Annual Body Party in NYC. "They're very, very down to earth."

Spencer -- who plays werewolf Sam Uley in New Moon and Breaking Dawn -- isn't only a member of Team Edward! "I think Taylor [Lautner] is going to make a great action star," he gushed. "When we first met, I thought, 'He's going to be the next Tom Cruise.' He's got that edge to him. He's so talented. He can go anywhere, just like Tom."

The Twilight Saga: Breaking Dawn Part 1 opens in theaters Nov. 18.