|Planet of Origin:||Earth|
|Original era:||20th Century|
|Portrayed By:||Andy Serkis|
When the Sixth Inspector investigates a mysterious interspatial "bridge" between the planet Felkar in the triple star system of Gliese 667 and the Swiss Patent Office in 1904—almost 23 light years apart—he and Pippi meet a bright young clerk who introduces himself as Bertie. Meanwhile on Felkar, the villainous dictator Darob is planning to trick his political opponents into taking a one-way ride to Earth on the titular spacewhip by collapsing the bridge behind them... which could mean the destruction of both worlds. Fortunately, with Bertie's help, the Inspector is able to neutralize the spacetime anomaly and prevent Darob's plot.
After the Inspector deposits Bertie safely back in Bern, he reveals to Pippi that she has just met the young Albert Einstein and the phenomenon connecting the two worlds will be called an Einstein-Rosen Bridge.
- The serial's best-known scene is the "zorbing" chase, in which the Inspector, Pippi, and Bertie are encased in 3m-diameter lightweight plastic spheres-within-spheres for a downhill pursuit of Darob. Chapman, as a member of the Dangerous Sports Club, convinced the director to let him write in this sequence specially.
- When the Inspector tells Bertie that "the separation between past, present, and future is only an illusion, although a convincing one", this is in fact a quote from Einstein himself.
- Bertie is not to be confused with the character sharing the same first name who appears in the Seventh Inspector serial "The Melancholy Mafia".