(written from a Production point of view)
Jonathan "Jon" Dweck (born 28 June 1959; age 58) was a child who portrayed an Only in TOS: "Miri". Jonathan Dweck is the youngest son of Grace Lee Whitney and Stevan Dweck, Ph.D. and brother of Scott Dweck. The family grew up in Los Angeles, California. Dweck chose a career as a science teacher, which he has taught for nearly 30 years.