With the recent 20th anniversary of the live-action Scooby-Doo film being celebrated by James Gunn, people are feeling nostalgic about the gang. They've made various appearances in different series and films over the years and the franchise has maintained a loyal and devoted fanbase.

A Pup Named Scooby-Doo is certainly no exception to the fact; the series focused on the gang as kids when they were just starting out in their hometown, and brought in some new villains and characters for audiences to discover and love. Naturally, Scooby and the gang stand out, but characters such as Jenkins, Red Herring, and Gus deserve some of the spotlight as well for their memorable appearances in the series.

Carol Colossal

Carol talking to Barbara in Scooby Doo

Carol only showed up in a couple of episodes but her appearances were memorable. She gives Shaggy and Scooby an unforgettable gift for helping solve the mystery of who was trying to put her out of business. Even though it was her secretary Barbara who was behind the evil plot, the next time audiences see the two, she is still employing Barbara even from prison as she remains the best secretary she ever had.

RELATED: 10 Long-Running Animated Franchises That Continue To Release New Content

Clearly, Carol doesn't hold onto grudges. Scooby and the gang helped her twice to unmask the villains that were threatening her businesses, and both times she happily showed them her appreciation, which is significant as not everyone necessarily showed the gang their thanks.

Gus

Gus talking with Shaggy and Scooby in Scooby Doo

Gus is the school janitor, and while he can be quite scary and intimidating when he wants to be, he's a good guy that loves to invent. He invented the mopping kayak, and the automatic pizza machine, the latter of which he uses when he gets to run Crusty's.

He's always up for helping the gang, Velma especially, and audiences wish they could've seen more of Gus and his inventions in the series.

The Villains Behind The Masks

Purvis Parker scaring Scooby and the gang on left, and the computer ghost holding Velma and scaring Scooby on right

Each of the series to emerge from the Scooby-Doo franchise introduced new villains or presented familiar ones (like The Creeper) in a new setting. In the case of A Pup Named Scooby-Doo, fans are familiar with the ghost of Purvis Parker, the Dinkley 2000, Chickenstein, Boogedy Bones, and more as these villains certainly stood out in the series for their appearances and their evil plans.

Even when they were kids, Scooby and the gang were always meant to catch and unmask villains, and audiences loved seeing a new line-up of bad guys for the gang to encounter, have chase scenes with, and ultimately uncover their schemes.

Daphne

Daphne with her hands held up in Scooby-Doo

Daphne still had some growing up to do as a young girl given her stark contrast to her older self in the later series of the Scooby-Doo franchise. Daphne used sarcasm and certainly didn't believe in anything supernatural.

Her color was also pink instead of purple as a kid, which is definitely a big change considering how seriously Daphne takes fashion. Nonetheless, audiences certainly enjoy Daphne's sarcasm to the point where she and Chandler Bing of Friends could have certainly had some witty conversations!

Red Herring

Red Herring in Scooby-Doo

Where would A Pup Named Scooby-Doo be without the infamous Red Herring? Red loves to torture the gang, especially Fred, whenever he can. Fred often declares the villain to be Red Herring, to which Red appears and proves Fred wrong and offers a snarky remark or insult before he goes.

Red may not end up being the villain the gang was after, but he is a bully that frequently appears in their lives and was very much a part of their formative years as they found their footing in detective work.

Velma

Velma looking at a clock in Scooby-Doo

Much like her teenage self, young Velma is intelligent and loves solving mysteries. Her computer in a case is a handy accessory for her detective work and she never fails to follow the clues and name the culprit.

RELATED: 10 Best Cartoon Theme Songs, According To Ranker

Velma doesn't hesitate to jump into the next mystery or miss the next science fair; it's no surprise to audiences that she balances her schoolwork and her career path as a detective so well, knowing that she would grow up to solve many more interesting cases.

Fred

Fred with his hands on his hips in Scooby-Doo

Fred's character is rather interesting given there are some stark differences between his elementary-aged self and his teenage self. His hypotheses for crimes committed or the villains behind them are often over the top and he typically jumps to the conclusion that Red Herring is behind whatever crime is at hand.

Then again, Fred hadn't quite perfected his leadership methods just yet. Fred's recounts of The National Exaggerator are certainly entertaining, and audiences certainly remember Fred's story of the Mole Men!

Shaggy

Shaggy looking down in concern in Scooby Doo

As audiences know, Shaggy loves food and his friends, especially Scooby-Doo. Even from the beginning, audiences see that Shaggy was never really into anything scary.

RELATED: 10 Best Saturday Morning Cartoons, According To Ranker

It's pretty cool to be able to discover more of Shaggy's childhood, as audiences get to see his parents and his younger sister Sugie, who Shaggy cares for dearly; he even went up against a scary babysitter for her! Nonetheless, as always, Shaggy is always there for his best friends, especially Scooby-Doo, and he remains a fan favorite.

Scooby-Doo

Scooby smiling at Shaggy in Scooby Doo

Scooby-Doo has been iconic since the premiere of Scooby-Doo Where Are You in 1969. Just like his older self, Scooby loves his Scooby snacks, would prefer to enjoy a giant pizza over solving a mystery, and is best friends with his buddy, Shaggy.

It's pretty cool to see a younger version of Scooby, in which one episode featured his parents, and just how strong Scooby's bond was with Shaggy from the very beginning. As always, Scooby is adorable and beloved, just as he is in all of the series he's appeared in over the years. 

Jenkins

Jenkins with Daphne and Red Herring in Scooby-Doo

Daphne's butler Jenkins was the biggest supporter of Scooby-Doo and the gang, as he often helped out with various tasks and came from anywhere to help. Jenkins always dropped whatever he was doing to help and he never complained, even when Daphne provided him with the most menial tasks.

All anyone from the gang has to do is call "Jenkins!" and he appears from nowhere, as though he has supernatural abilities to hear and race over from just about any part of the world. He never seems to take a day off, and he's very loyal to the point where he really should've officially been named an honorary member of The Scooby-Doo Detective Agency.

NEXT: 9 Best Scooby-Doo TV Shows, According To IMDb