Character Development: Starts out as a fairly stereotypical Jerk Jock who is condescendant toward Ethan and considers his sport more important than his ranger duties. By the end of the show, he is more compassionate, actually cares about the others and tries his best to help.
Four Is Death: He's the fourth Ranger on the team and is wearing his fourth color overall. Over the course of the series, he gets frozen in amber, hit with two different instances of Power Incontinence, and is briefly put in a coma.
Papa Wolf: Do not threaten his students if you know what's good for you. It will not end well.
Power Incontinence: Twice; the first time, he got stuck in his morphed form by the White Drago Ranger, and the other time, he got stuck in his invisible form.
Same Character, But Different: Entirely justified considering it has been six seasons since the last time we saw him (not counting Forever Red, where he was more or less similar to how he is in this show).
Trent Fernandez-Mercer / White Drago Ranger | (Actor: Jeffrey Parazzo)
Ascended Fanboy: He gets to meet a comic book artist he admires and the two even work on a comic together after Trent is forced to tell him he's the White Ranger (Anton bankrolls it without telling him).
Those Two Guys: Almost to the point of being Spiritual Successors to Bulk and Skull, considering they spent a chunk of the season trying to discover the Rangers' identities.
Unwanted Glasses Plot: Devin tries to avoid wearing glasses. Then an MOTW creates a bunch of Cassidy clones who all start badgering him at the same time.
"My mom always say to wear my glasses. But no, I'm afraid of looking like a dork!"
What Could Have Been: Devin was going to be the Triassic Ranger, but as Abaranger continued it became apparent that rather than a separate hero it was just another Super Mode for Red, meaning these plans had to be discarded entirely.
Mesogog/ Anton Mercer | (Actor: Latham Gaines)
Agony Beam / Mind Rape: His preferred method of keeping his minions in line (he uses it on them more than his actual enemies).
Brainwashed and Crazy: When she loses her powers, she looks much more human and acts as if emerging from a daze. She later claims to have been under Mesogog's control, and the Mesogog-free Anton is happy to see her.
Clark Kenting: Lampshaded; when her cover is blown, Tommy notices he should have guessed sooner and Ethan references the trope namer.
Good Scars, Evil Scars: A black, stitched scar runs from her bottom lip to her chin. Ironically, it acts quite a bit like a 'good' scar (vanishing when she transforms, not detracting from her looks, etc.), but marks her as a villain at the same time.