|John A. Billingsley|
|Character 1||Terrence Steadman|
|Date of Birth||20 May 1960|
|Family||Bonita "Bonnie" Friedericy (wife)|
John Billingsley has a relation with Bonita "Bonnie" Friedericy, who is his wife. John also has 2 cats, who are taken care off by his wife.
- John has 2 cats.
- John played in the Stargate SG-1 episode "The Other Guys", a scientist with a fascination with Star Trek (his character states he dresses up as a Vulcan at Star Trek conventions). In Star Trek: Enterprise, John Billingsley plays the medical officer Dr. Phlox, whose shipmate is a Vulcan named T'Pol.
- John was along with Dominic Keating (who played Andrew Tyge) a regular on Star Trek: Enterprise.
- John was along with Camille Guaty (who played Maricruz Delgado) a regular on The Nine.
- John is also 2 degrees of Kristin Lehman (who played Jane Phillips) by Chi McBride. Chi McBride appeared Kristin in Killer Instinct. Chi McBride appeared in the Nine with John. See picture on the left.
- John was replaced as actor for his work as Terrence Steadman, because he was going to work for the Nine.
- John is 5 ft 9.5 in 177 cm.
- John's zodiac sign is a Taurus.
- John like his co-star Tim Daly, graduated from Bennington College, where he studied theater and literature.
- John had a hand in founding Book-It, a theater company specializing in stage adaptations.
- John is an avid reader and has a collection of more than 5,000 books.
- John appeared along with Michelle Forbes in Star Trek, True Blood, 24 and Prison Break.
Prison Break main cast crossovers
- Chat with John Billingsley
- Interview with Bonita Friedericy and John Billingsley
- Interview with John Billingsley
- John Billingsley answers fan questions part 1
- Autographs by John Billingsley
- John Billingsley on Stargate Wikia
- John Billingsley on 24 Wikia
- John Billingsley on Memory Alpha
- John Billingsley on True Blood Wiki
- John Billingsley on Scrubs Wiki
- John Billingsley on X-Files Wikia
- John Billingsley on Memory Alpha Dutch
- John Billingsley on Dutch Wikipedia