In baseball, a seasoned, veteran ball player is considered a valuable member of the team. It's not that different in television, and during the summer -- when baseball is thriving -- a lot of primetime drama series thrive thanks in no small part to the contributions of valuable assets like the following "boys of summer."

Without the experienced and knowing assists of veteran actors, the summer series listed here simply wouldn't be as entertaining.

Check out our seven "most valuable players" and tell us if we got it right ... or who we left out!

'Lost' fans wondering if they would be seeing more of Kiele Sanchez are in for a treat, as the actress will be returning to television as someone other than Nikki Fernandez.

According to the Hollywood Reporter, Sanchez has been tapped to co-star in 'Sugarloaf,' an upcoming pilot for A&E. The actress, who was most recently seen this summer in the big-screen thriller 'A Perfect Getaway', is best known for her role as Fernandez, who quickly became the target of fan ire during season three of 'Lost,' leading producers to abruptly kill off the character (you gotta please the viewers somehow).