Keith Carradine has had a long and illustrious career that spans stage, screen, and radio, not to mention an Academy Award for best original song (“I’m Easy” from the film “NASHVILLE”).  Recently, we’ve seen him grace our TV screens with guest starring roles on DAMAGES, DEXTER (I will always miss Lundy), DOLLHOUSE, and, personal favorite DEADWOOD. This season, he’s lending his skill to ABC’s MISSING – as Martin, the voice of reason in Becca Winstone’s life.  Martin leant Becca his