Kiana is the only saboteur to sabotage the challenge and be detected in The One-Eyed Watcher. Also, she is the only saboteur in The One-Eyed Watcher who failed to escape the tower.
Imogen is the only saboteur in Poisoned Harvest who contaminated the baskets by placing the mininum number of berries in the baskets (2 poison berries), as per the Voice's instructions.
Imogen is the only saboteur to succeed; Abigail was undetected, but failed to sabotage the challenge in Snake Attack, while Louis in Septic Sewers and Kiana in The One-Eyed Watcher both successfully sabotaged the challenge but were detected.
Aside from Poisoned Harvest, as she was the saboteur, Imogen guessed all the saboteurs correctly on every floor (she voted for George in Poisoned Harvest). She was the only one to spot the real saboteur, Abigail, in Snake Attack, while Michael and Kiana guessed incorrectly; Michael voted for Kiana, while Abigail and Kiana voted for Imogen. Luckily for Imogen, the team passed Snake Attack; thus, Abigail, the saboteur was automatically trapped, regardless of the vote.
Michael is the only unfortunate bitten by the snake to escape the tower.
Another Michael appears on the show, in Series 3, Episode 1 (Brixton), who also won and escaped the show with 4 correct answers to 3. As an additional comparison, he also was not chosen as the saboteur.
Aside from Poisoned Harvest, in which he voted for George (who also voted for him), all of Michael's votes on each floor went to Kiana.
In Septic Sewers, at the end when the time ran out, one of the plugs was not inserted correctly (as a result of Louis, the saboteur, deliberately trying to stop Imogen and Abigail completing the drain) which caused the challenge to be failed. This means that in order for the challenge to be passed, all the plugs must be correctly inserted into the holes on the drain.
This episode originally aired on the 7th anniversary of the 9/11 terrorist attacks from 2001, which is very ironic considering Trapped! takes place in a tower, and the 9/11 attacks involved towers (the World Trade Center twin towers in New York) getting destroyed.
In Poisoned Harvest, Kiana saw Imogen placing a poisoned berry into Louis’ basket. However, because Imogen did not receive any votes, this may imply that Kiana did not see the poisoned berry in Imogen’s hand.
During the last few seconds of Septic Sewers, Imogen’s helmet fell off her head.
Although she does not appear in this episode, as the challenge Two Faced Liar is not played, Madam Deux Visage is mentioned at the beginning of the episode by The Caretaker.