The man was in Mojitos and allegedly punched a woman in the face, assaulted a member of staff and headbutted a man in the street.
Officers would also like to speak to anyone who saw an altercation between two women on the dance floor.
The incidents happened between 1:00 and 2:00 Sunday morning.
Guernsey Police said: “If you have any information regarding this incident you are asked to contact E Shift on 222 222 or to contact Crimestoppers anonymously on 0800 555 111.”