Who is Lacy Devlin from Ice Hunt and what is their importance?

Lacy Devlin is a assistant to geologist Connor MacFerran, and now a geology postgrad, Lacy was once a US Olympic team speed skater in 2000 but had torn a cruciate ligament in her knee. That had effectively ended her career in speed skating. She still loved it however, and with long and smooth muscular legs, she loved the ice tunnels for the exercise she could get. She regularly donned her short track skates and flew through the tunnels once she'd marked a track.