At 21, SAMMY JACKSON (1937-1995) had a bit part in No Time for Sergeants (1958). He later starred in the TV series of the same name (1964-65), recorded a number of 45RPM country and rockabilly singles (1959-65) and worked as a DJ.
About the same time he was making his (one-line, uncredited) film debut, he also posed for Bob Mizer (AMG) and John Palatinus ...