<P> In season seven , Callen admits that he and Joelle are not suited and rowing a lot . They break up off screen but still spend Christmas together to avoid being lonely . In `` Matryoshka , Part 2 '' , Callen meets his father in Russia who reveals that his birth name is Grisha Alekandrovich Nikolaev but had to leave before he could find out any more information . Callen has since updated his personnel records and credentials with his full name . </P>
<P> In season seven , Callen admits that he and Joelle are not suited and rowing a lot . They break up off screen but still spend Christmas together to avoid being lonely . In `` Matryoshka , Part 2 '' , Callen meets his father in Russia who reveals that his birth name is Grisha Alekandrovich Nikolaev but had to leave before he could find out any more information . Callen has since updated his personnel records and credentials with his full name . </P>
what is g 's name in ncis la
what is g 's name in ncis la
Grisha Alekandrovich Nikolaev
Grisha Alekandrovich Nikolaev