"I look for fun and smarts -- a witty, strong sexy woman," he tells Us.
Dallas would also like to see their characters on overcome the odds and end up together before the first season ends this spring.
When the actors began filming their ABC series in Vancouver last summer, "they really hit it off," one insider explains.
"She and Josh have a blast together and had instant chemistry." PHOTOS: Meet the cast of ABC's Once Upon a Time That sweetness was on display March 18 when the two ducked into the Naam, a Vancouver vegetarian eatery.
Prior to her relationship with Dallas, Goodwin was engaged to actor Joey Kern.
Dallas married British actress Lara Pulver in 2007; they are currently separated.
PHOTOS: Costars who fell in love "I would love them to find each other and have that happy ever after," he told Us during Paleyfest in early March.
A group of interconnected, Baltimore-based twenty- and thirty-somethings navigate their various relationships from the shallow end of the dating pool through the deep, murky waters of married life, trying to read the signs of the opposite sex...
costar Josh Dallas, 30, since last fall, multiple insiders confirm in the new issue of Us Weekly (out Friday).