Doyle is a former oil rig worker, who was once under the employment of Malloy, and she is currently employed by Lady Penelope.
When Doyle decided to no longer work for Malloy, she was thrown overboard by her former boss, but luckily for her, Kayo quickly came to her rescue. Then, she assisted Kayo, Lady Penelope and Parker when the oil rig caught fire. Also, she tried to lift the rig back upright with the rig's crane, but it wasn't enough even with Kayo piloting Thunderbird Shadow, and as a result, the crane collapsed but fortunately, Doyle got out just in time. However, with much-needed assistance from Thunderbird 2, the rig was saved, and then, Doyle freed her trapped colleagues. Also, she told Lady Penelope that, for once, she was proud of the work that she had done, knowing all too well that what she and her workers were doing under Malloy's orders was bad.
Voiced by Emilia Clarke, Doyle appears in Rigged for Disaster.