Tulak
Tulak was a hologram, based on Tuvok, in The Doctor's holonovel entitled Photons Be Free. In the novel, Tulak was a Human who served aboard the . Unlike Tuvok, Tulak wore a goatee and had shades of grey in his hair.

In "Chapter 7: The Escape", he and Ensign Kymble took the EMH character into custody on orders from Captain , with the intention to reprogram its holomatrix. He was stopped by Three of Eight, a character based on Seven of Nine who rescued the EMH. However, the EMH was soon recaptured and reinitialised in "Chapter 8: A Tragic End". () 

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Holograms
Fictional characters