Milo Ventimiglia & Jaimie Alexander Couple Up?

Milo Ventimiglia hops into his car with his rumored girlfriend, actress Jaimie Alexander, on Wednesday (September 23) in Venice, Calif.

Milo, 32, was last romantically linked to his Heroes co-star Hayden Panettiere, 20.

Jaimie, 25, is most popular for her role as cloned human Jessi XX on the sci-fi show Kyle XY. She was just cast opposite Chris Hemsworth in the superhero flick Thor as one of the thunder god’s loves. Jaimie will play Sif, a skilled Asgardian warrior who can hold her own against any man.

After the Thor news was announced, Milo tweeted Jaimie: “Congrats to @JaimieGirlXO, very well deserved.”

You can follow Milo on Twitter @DividePictures, Just Jared @JaredEng and JustJared.com @JustJared.

10+ pictures inside of rumored couple Milo Ventimiglia and Jaimie Alexander…