The Ultimate Guide To The Scooby-Doo Cast: From 1969 Originals To The Latest 2025 Projects

The Mystery Inc. gang has been solving paranormal puzzles and unmasking villains for over five decades, making the cast of Scooby-Doo one of the most enduring and beloved ensembles in animation history. The franchise, which began with Scooby-Doo, Where Are You! in 1969, continues to evolve, bringing new actors into the fold while relying on the incredible talent of veteran voice artists to maintain the characters' iconic personalities. As of December 2025, the core cast remains active, with exciting new projects like the Netflix live-action series and a potential 2025 animated show keeping the spirit of Mystery Incorporated alive and well.

This deep dive explores the three major iterations of the cast—the Original Voices, the Current Animated Team, and the Live-Action Stars—highlighting their biographies, recent work, and the incredible legacy they've built across multiple generations of fans.

The Enduring Voices of Mystery Incorporated: A Complete Cast Biography

The history of the Scooby-Doo cast is a fascinating journey of continuity and change. While many actors have played the roles, a few names stand out as the definitive voices of Fred, Daphne, Velma, Shaggy, and Scooby-Doo.

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Frank Welker: The Last Original and the Definitive Fred & Scooby-Doo

• Full Name: Franklin Wendell Welker
• Born: March 12, 1946
• Scooby-Doo Roles: Fred Jones (since 1969), Scooby-Doo (since 2002)
• Legacy: The only actor to have voiced a main character (Fred) continuously since the original 1969 series. He took over the role of Scooby-Doo after the passing of Don Messick.
• Recent Work (2024/2025): Welker is confirmed to be involved in the upcoming Netflix live-action Scooby-Doo series, continuing his legendary run. He is also known for voicing Megatron in the Transformers franchise and countless other animal and sound effects.

Matthew Lillard: The Live-Action Star Who Became the Animated Voice of Shaggy

• Full Name: Matthew Lyn Lillard
• Born: January 24, 1970
• Scooby-Doo Roles: Shaggy Rogers (Live-Action 2002 film, and the animated voice since 2004)
• Legacy: Successfully transitioned from portraying Shaggy in the live-action movies to becoming the official, long-running voice of the character, a role originally held by Casey Kasem.
• Recent Work (2024/2025): Lillard is still highly active, with confirmed involvement in a new Scooby-Doo project. He also recently starred in the Stephen King adaptation The Life of Chuck, which won an award at the 2024 Toronto Film Festival. Outside of acting, he launched a new tequila brand.

Grey DeLisle (Griffin): The Voice of Daphne Blake

• Full Name: Erin Grey Van Oosbree (known professionally as Grey DeLisle or Grey Griffin)
• Born: August 24, 1973
• Scooby-Doo Role: Daphne Blake (since 2000, succeeding Heather North)
• Legacy: The definitive modern voice of the stylish and resourceful Daphne, starring in series like What's New, Scooby-Doo? and Scooby-Doo! Mystery Incorporated.
• Recent Work (2024/2025): She is one of the most prolific voice actors in the industry, known for voicing Azula in Avatar: The Last Airbender, and having received a Children's and Family Emmy Award nomination in 2022.

Kate Micucci: The Modern Velma Dinkley

• Full Name: Kate Micucci
• Born: March 31, 1980
• Scooby-Doo Role: Velma Dinkley (in Be Cool, Scooby-Doo! and various DTV films)
• Legacy: Known for bringing a unique comedic energy to Velma, often alongside her musical comedy partner Riki Lindhome (as the duo Garfunkel and Oates).
• Recent Work (2024/2025): Micucci is developing, producing, and voicing a new animated series called Toy. She also shared positive personal news in late 2023, announcing she was cancer-free after surgery.

The Original Pillars: Remembering the 1969 Voice Cast

The foundation of the Scooby-Doo franchise was laid by a legendary group of voice actors in the original series, Scooby-Doo, Where Are You! (1969). Their performances set the standard for every iteration that followed.

Don Messick (Scooby-Doo)

Don Messick was the first and original voice of the Great Dane, Scooby-Doo, from 1969 until his retirement. His iconic, gravelly, and often terrified delivery of "Ruh-roh!" and "Scooby-Dooby-Doo!" defined the character for decades. Messick was a prolific voice actor, also known for roles like Papa Smurf and Boo-Boo Bear.

Casey Kasem (Shaggy Rogers)

The legendary radio personality Casey Kasem originated the role of Norville "Shaggy" Rogers. Kasem voiced Shaggy for nearly 40 years, with a brief hiatus, and his high-pitched, nervous, and food-obsessed delivery is what fans universally recognize. Kasem's commitment to the character was absolute, and he is credited with making Shaggy one of the most endearing characters in cartoon history.

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Nicole Jaffe & Heather North (Velma & Daphne)

The original Velma Dinkley was voiced by Nicole Jaffe, who gave the character her signature intelligent and slightly nerdy sound. For Daphne Blake, the original voice was Stefanianna Christopherson, but she was quickly replaced by Heather North, who became the long-running voice of the sophisticated and danger-prone Daphne in most of the classic series.

The New Era: Live-Action and Adult Animation Casts

The Scooby-Doo universe continues to expand, leading to new, high-profile casting choices that introduce the Mystery Inc. gang to different audiences and formats. These projects often feature celebrity actors, offering a fresh take on the classic characters.

The 2002 Live-Action Movie Cast

The first major live-action adaptation, Scooby-Doo (2002), featured a cast of major Hollywood stars who perfectly embodied the gang's look and feel. This film is notable because it directly led to Matthew Lillard becoming the animated voice of Shaggy.

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• Fred Jones: Freddie Prinze Jr.
• Daphne Blake: Sarah Michelle Gellar
• Velma Dinkley: Linda Cardellini
• Shaggy Rogers: Matthew Lillard

This cast reunited for the 2004 sequel, Scooby-Doo 2: Monsters Unleashed, and their portrayal remains a cultural touchstone for many fans, bridging the gap between the classic cartoon and modern cinema.

The Controversial Velma (2023–2024) Series Cast

The Max adult animated series Velma, which premiered in 2023, took a drastically different approach, reimagining the characters' origins and identities with a new, celebrity-driven cast. This series focuses solely on the human members of Mystery Inc., with Scooby-Doo notably absent.

• Velma Dinkley: Mindy Kaling (also an executive producer)
• Shaggy Rogers: Sam Richardson
• Daphne Blake: Constance Wu
• Fred Jones: Glenn Howerton

The show's unique take on the characters, including a new backstory for Fred and Shaggy, generated significant discussion and curiosity among fans, proving the enduring relevance of the franchise.

Looking Ahead: Confirmed and Rumored Future Projects

The Scooby-Doo franchise shows no signs of slowing down, with multiple projects in development that will introduce new cast members while retaining the core voice talent.

• Netflix Live-Action Series (TBA): A new live-action series is currently in development for Netflix. The most significant casting news is the return of veteran Frank Welker to voice Scooby-Doo, a massive nod to the franchise's history and a guarantee of character consistency.
• Go-Go Mystery Machine (TBA): An animated series is slated for Cartoon Network, though specific cast details and a release date are still to be announced. This suggests a return to a more traditional, kid-friendly format.
• Scooby-Doo! The Live-Action Series (2025): Another live-action series is rumored for 2025, indicating that Warner Bros. is committed to exploring the gang's adventures across multiple platforms and styles.

The continued casting of Frank Welker and Matthew Lillard in major animated roles, alongside the exploration of new live-action and adult animated formats, ensures that the Mystery Inc. gang—and the talented actors who bring them to life—will continue to solve mysteries for years to come. The blend of nostalgic voices and fresh faces is the secret ingredient to the franchise's timeless success.