- « "This'll be difficult to explain to the next of kin: good news - he's not technically dead. Bad news - he's turned into a mushroom!" »
- — James Lester[src]
Mark Baker was an employee of Christine Johnson who travelled with her and Captain Wilder to the Anomaly Research Centre. Wilder ordered Baker to search around the ARC, he then found the a sample of future fungus spores in one of the labs. He touched it and was rapidly taken over and turned into a fungus Creature. The team later killed the Baker creature by turning up the temperature in the room, causing the Baker creature to explode. (Episode 3.5)
Baker being taken over by the Future Fungus.