Bloodlines

"Bloodlines" is the sixth episode of the second season of Young Justice, and the 32nd of the overall series. It aired on June 2, 2012.

Logline
An intruder mysteriously appears inside Mount Justice, claiming to be a tourist from the future. But who is he really? And what is his true agenda?

Title
The term "Bloodline" is used to describe a family connected by blood. This applies to Bart meeting his grandfather and grandmother from the past. Also, it may refer to Red Arrow finding Roy Harper, whom he was cloned from.

Cast and characters
! colspan="3"| Non-speaking roles
 * Cameron Bowen
 * colspan="2"| Robin
 * Nicole Dubuc
 * colspan="2"| Iris West-Allen
 * George Eads
 * colspan="2"| Barry Allen/Flash
 * Crispin Freeman
 * colspan="2"| Red Arrow
 * Logan Grove
 * colspan="2"| Beast Boy
 * rowspan="2"| Kelly Hu
 * colspan="2"| Cheshire
 * Lian Nguyen-Harper
 * Stephanie Lemelin
 * colspan="2"| Computer
 * Jason Marsden
 * Bart Allen/Impulse
 * Jesse McCartney
 * colspan="2"| Nightwing
 * Geoff Pierson
 * Jay Garrick/Flash
 * Jason Spisak
 * colspan="2"| Kid Flash
 * James Arnold Taylor
 * Nathaniel Tryon/Neutron
 * Jason Marsden
 * Bart Allen/Impulse
 * Jesse McCartney
 * colspan="2"| Nightwing
 * Geoff Pierson
 * Jay Garrick/Flash
 * Jason Spisak
 * colspan="2"| Kid Flash
 * James Arnold Taylor
 * Nathaniel Tryon/Neutron
 * Jason Spisak
 * colspan="2"| Kid Flash
 * James Arnold Taylor
 * Nathaniel Tryon/Neutron
 * James Arnold Taylor
 * Nathaniel Tryon/Neutron
 * colspan="3" | Joan Garrick
 * colspan="3" | Mal Duncan
 * colspan="3" | Speedy
 * colspan="3" | Mal Duncan
 * colspan="3" | Speedy
 * colspan="3" | Speedy

Continuity

 * Nightwing mentions the data Miss Martian and Martian Manhunter downloaded on Malina Island, as shown in "Alienated". Beast Boy did not know because he was not there.
 * Cheshire explains the lead that she revealed she had on Speedy in "Salvage".
 * The police captain gets Kid Flash confused with Speedy, just as a spectator did in "Independence Day".
 * Kid Flash remarks he's used to being lapped by the Flash. This was first seen in Young Justice #16: "Common Denominators".
 * Red Arrow finally finds Speedy after five years of searching, which started in "Auld Acquaintance".

Trivia

 * Flash mentions a shelter on "Fox and Gardner", a reference to Flash creator Gardner Fox.
 * This is the first episode in which Miss Martian is absent since her debut in "Fireworks".
 * Impulse twice says, "Oops, spoilers" when discussing the future. The line is often heard in the TV series Doctor Who, spoken by River Song, a companion and fellow time traveler who tends to meet the Doctor out of sequence, when she is concerned about saying too much about events that are in the future from his perspective.

Goofs

 * Right after Red Arrow and Cheshire land on the bell tower, Red Arrow has a gauntlet on the arm facing the screen, but in the next shot, it is a glove.

Cultural references

 * Impulse mentions that "...half the meat at Comic-Con are from [his] era." Comic-Con International is an annual comic-book and pop culture convention.

Unanswered questions

 * What is a meta-gene?
 * Who were the aliens controlling Neutron?
 * What caused the future to turn out the way it did?
 * Why did the future not change when Impulse fulfilled his mission?