Summary

• Doctor Who and Star Trek have a long history of respectful nods and crossovers, with actors from both shows appearing in each other's productions.
• Star Trek: The Next Generation referenced Doctor Who multiple times, including name-checking the first six actors to play the Doctor.
• Both the Doctor and Captain Kirk have faced off against the Borg and the Cybermen in comic book crossovers, creating thrilling adventures for fans of both franchises.

They're the two biggest television sci-fi franchises in the world, and there have been a handful of crossovers between Star Trek and Doctor Who. Both shows have been entertaining audiences for six decades, and show no sign of stopping any time soon. Rather than being bitter rivals, Doctor Who and Star Trek regularly make respectful nods to one another. For example, in Doctor Who season 1, episode 9, "The Empty Child", Rose Tyler (Billie Piper) expressed her disappointment that the Ninth Doctor (Christopher Eccleston) wasn't more Spock-like.
On top of this, many stars have been actors in Star Trek and Doctor Who, and not just on TV. Star Trek: Deep Space Nine's Alexander Siddig has played several roles in officially licensed Doctor Who audio dramas, and Star Trek: The Next Generation's Marina Sirtis recently appeared in the spinoff audio The Year of Martha Jones. However, it's not just actors that have jumped between the worlds of Star Trek and Doctor Who over the past 60 years.

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