Mr. Springer was a shopkeeper who caught a young Kate Austen stealing a lunchbox with the aid of Tom Brennan and threatened to report her thievery to her mother, Diane. Before he could do so, a man paid him for the lunchbox. Mr. Springer gave the lunchbox to Kate, and let her off with a warning.
The casting call described him as "Mr. Springer. Caucasian. 50s. Kindly but can be a hard-ass when necessary. Owns his own rural business. Worked hard to get where he is and provide for his family."