Stan Ivar
Stan Ivar  is the actor who played Mark Johnson in the  first and second season episodes  and as an alien illusion of the same in . He was also seen on photographs in the episodes , , , , and "Persistence of Vision".

Ivar was previously a regular performer on the TV shows Little House on the Prairie, Days of Our Lives, and General Hospital. He appeared in the 1989 movie The Big Picture, which also featured Stephen Collins from  and one-time  guest actress Teri Hatcher, and the 1991 movie Harley Davidson and the Marlboro Man (with Vanessa Williams, Jordan Lund, Branscombe Richmond, Brenan Baird, and James Nardini).

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Performers
VOY performers