A group of ordinary volunteers were chosen by the Doctor to be sent by UNIT through the Time Fracture in Operation Time Fracture.
The Doctor sent UNIT a long list containing the names of every person who would volunteer. Using this list, Kate Stewart sent a video message asking the people for their help with Operation Time Fracture. (WC: 14684 UNIT Field Log [+]Loading...["14684 UNIT Field Log (webcast)"])
The volunteers included a family of four, (PROSE: And now for a story... [+]Loading...["And now for a story... (short story)"]) a woman who filmed herself, (WC: Full-Length Trailer: Time Fracture [+]Loading...["Full-Length Trailer: Time Fracture (webcast)"]) and Tia Kofi. (WC: Tia Kofi Enters the Time Fracture! [+]Loading...["Tia Kofi Enters the Time Fracture! (webcast)"])
At least one explorer was part of the volunteer group for ever time looped version of the events involving the Time Fracture. (PROSE: Hello And Congratulations! [+]Loading...["Hello And Congratulations! (short story)"]) However, the recording of one loop of Operation Time Fracture made by the woman was a message to other people on the Doctor's list of names who had not yet answered the call, indicating that different loops of Operation Time Fracture included different volunteers. (WC: Full-Length Trailer: Time Fracture [+]Loading...["Full-Length Trailer: Time Fracture (webcast)"])