Ron Halder is a Canadian actor and voice actor born on July 13, 1953, with a career spanning from the 1970s to the present. Before becoming widely known for his voice work in animated series, Halder built a strong foundation in theatre, performing extensively across Canada in productions ranging from Shakespearean roles like Claudius in Hamlet and Edmund in King Lear to playing Scrooge in A Christmas Carol. He also worked extensively in live-action television, with guest appearances on popular series such as The X-Files, Stargate SG-1, and Highlander: The Series.

In the realm of anime and animation, Halder is recognized for his versatility, frequently providing voices for characters who are eccentric doctors or professors, kindly older mentors, or hard and malicious men. His extensive filmography includes a wide range of roles in English dubs of Japanese anime. Some of his most notable credits include voicing Don Wei in Oban Star-Racers, William Sutherland in Mobile Suit Gundam SEED, and Roger Ruvie in Death Note. He also played significant roles in the Transformers franchise, including Dr. Jones and the god-like Primus in Transformers: Energon, as well as Metroplex in Transformers: Cybertron. For fans of longer-running series, he is known for roles such as Seikai in InuYasha, Yotsuya in the later episodes of Maison Ikkoku, and various characters in Ranma 1/2.

Regarding the specific roles mentioned, Halder indeed provided the English voice for Gaffer, the grandfather of the protagonist in Zoids Wild. He voiced Collins One Seven in the Meltylancer: The Animation OVA. His role as Don Wei in Oban Star-Racers is well-documented, and his dual role as both Dr. Jones and Primus in Transformers: Energon is consistently confirmed across multiple sources.

Throughout his career, Halder has been a frequent collaborator with Ocean Productions, a prominent Canadian dubbing studio. This has led to him working alongside a recurring ensemble of fellow Canadian voice actors. He has collaborated extensively with actors such as Scott McNeil, Michael Dobson, Brian Drummond, and Richard Newman on numerous projects, including various Gundam series, InuYasha, and X-Men: Evolution. Beyond performance, Halder has also contributed his expertise as a teacher of stage combat at the National Theatre School of Canada in Montreal and has choreographed fight scenes for both stage and screen.