Who plays Mr. Simmons in Hey Arnold!?

Mr. Simmons is played by Dan Butler.

How is Mr. Simmons connected to other characters?

Mr. Simmons has 8 mapped relationships in Hey Arnold!. Explore the interactive relationship map for details.

Mr. Simmons — Teacher — Arnold (Phillip Van Dyke)
Mr. Simmons is the new teacher whose departure highlights his impact on Arnold's class.
Mr. Simmons — Colleague — Principal Wartz (David Wohl)
Direct professional succession; Wartz's resignation and Simmons' promotion reshape school leadership.
Mr. Simmons — Protagonist-Teacher — Arnold (Phillip Van Dyke)
Arnold's presence and actions drive the narrative focus of Mr. Simmons' classroom documentary.
Mr. Simmons — Classroom Dynamic — Arnold (Phillip Van Dyke)
Mr. Simmons experiences classroom friction with Arnold, prompting his resignation.
Mr. Simmons — Student-Administrator — Sid (Sam Gifaldi)
Sid's daily school experience is directly shaped by the new administrative policies.
Mr. Simmons — Workplace Peer — Mr. Hyunh (Baoan Coleman)
Both manage professional reputations and navigate workplace expectations under authority figures.
Mr. Simmons — Acquaintance — Grandpa Phil (Dan Castellaneta)
Grandpa Phil interacts with school staff through Arnold and broader community events.
Mr. Simmons — Colleague — Mr. Green (James Keane)
Both are established figures operating within the same neighborhood and school community.