Along with Jonathan Frakes, Marina Sirtis, Armin Shimerman, John de Lancie and Richard Poe, he is one of only six actors to play the same character on three different 'Star Trek' series. He played Kang in "Star Trek" (1966), "Star Trek: Deep Space Nine" (1993) and "Star Trek: Voyager" (1995).
Ex-uncle-in-law of Katherine Fugate.
He has played the same character, Dr. Victor Fries/Mr. Freeze, in four different series: "Batman" (1992), "The New Batman Adventures" (1997), "The New Batman Adventures" (1997) and "Batman Beyond" (1999).
Interviewed in Tom Weaver's book "Monsters, Mutants and Heavenly Creatures: Confessions of 14 Classic Sci-Fi Horrormeisters!" (Midnight Marquee Press, 1996).
Son, with Barbara Eden, was Matthew Ansara (d. 25 June 2001, Monrovia, California, USA).