10 Greatest New Beginnings In Star Trek

6. It's Me - Dax

The odds were against Nicole De Boer when she joined Deep Space Nine in the show's final season. She was introducing a new character late in the run, while also replacing a beloved fan favourite in the form of Terry Farrell's Jadzia Dax as well. It would take years for the details of that departure to become public which, for Ezri's introduction, was a blessing.

Even knowing what happened behind the scenes, Ezri's introduction still proves a positive addition to the show. While the 'old man' had transformed overnight from a wise advisor to uncertainty personified, this change in dynamic helped to breathe new life into the show's last outing. 

De Boer soars in the role, giving the audience a new character to root for. Her interactions with the existing cast, particularly with Avery Brooks and Michael Dorn, proved that it wasn't too late to bring something new to the line-up. It had worked well in the fourth season and it worked again in the seventh.

In another universe, the audience could have been blessed with Farrell and De Boer sharing the screen. As it stands, though losing Jadzia was a dreadful blow, gaining Ezri not only softens it but offers a fresh perspective on an already-suffocating war.