Gallery of projected line-of-sight velocities for a subsample of our simulated galaxy clusters. The figure highlights the diversity in the kinematics of TNG-Cluster halos at z = 0, demonstrating their diverse dynamics and the underlying, hidden connections with galaxy and halo properties which are correlated with ICM motions. The scale written on the bottom left of each panel corresponds to the halo virial radius, R_200c. Positive (negative) velocities correspond to gas moving away from (toward) the observer.