- For other uses, see Walker.
In the year 2409 of an alternate timeline, the temporally displaced USS Enterprise-C attempted to escape from a Tholian base in the Azure Nebula. Captain Walker hailed the Enterprise and had the Pastak defend the ship against Tholian vessels. Following the defeat of the Tholian flotilla, the Pastak ensured the Enterprise's return through the temporal rift to the Narendra system in 2344. (STO mission: "Temporal Ambassador")