Tommy Rettig.

About Tommy Rettig

Thomas Noel Rettig was an American child actor, computer software engineer, and author. He portrayed Jeff Miller in the first three seasons of CBS's Lassie television series, from 1954 to 1957, later seen in syndicated re-runs with the title Jeff's Collie. He also played the young orphan adopted by British star David Niven in an episode of the TV anthology series Four Star Playhouse entitled "No Identity." He then co-starred with another former child actor, Tony Dow, in the mid-1960s television teen soap opera Never Too Young and recorded the song by that title with singing group The TR-4.