(written from a Production point of view)
Derek Bulger is an actor who played an Osaarian pirate in the Star Trek: Enterprise third season episode "Anomaly". He received no credit for his appearance but was identified by the name tag of his costume which was sold off on the It's A Wrap! sale and auction on eBay. His name was misspelled as Derek Bulgar. 
Bulger played Pedro in the 1999 short film Thicker Than Thieves and was alongside Kim Koscki involved in the production of the independent film Dementia: An Experiment in Terror (2004).
In the most recent years, Bulger worked as costume supervisor on projects such as for the Universal Studios Hollywood Tour (2011) and on the comedy series Easy to Assemble (2012) and performed in plays including 'Moon Over Buffalo" (2011) and "No Exit" (2014) at the Long Beach Playhouse Theatre.