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Glenn Morshower, '24'
You know him as: Faithful secret service agent Aaron Pierce
Why we like him: Morshower's career is filled with one-shot background figures who stuck around long enough to become valuable supporting characters. After Jack and Chloe, is there anybody that fans of "24" have grown to love and root for more than Agent Pierce? He's just an ordinary guy committed to doing his job and committed to justice and when Agent Pierce found himself in danger last season, we were all just a little bit worried.
Where else you've seen him: You name the show, Morshower's probably done it, and probably in uniform. He's dropped by "E.R.," "Alias," "The West Wing," "CSI," "JAG" and "Charmed," among other shows.