Keith Wickham voices Sir Topham Hatt (The Fat Controller) in Thomas & Friends with a firm, authoritative, yet ultimately caring and fatherly tone, reflecting the character’s strict but fair nature. His portrayal, which began in the CGI era (2009), adopted a lighter, yet still proper British Yorkshire accent compared to earlier narrators. Personality Representation: Wickham portrays Topham Hatt as a strict disciplinarian who cares deeply for his engines and staff. He emphasizes the "father figure" aspect of the character. Voice Style: His take on the character is professional, stern when necessary (particularly regarding "confusion and delay"), but also capable of being jolly or lighthearted, notes the Thomas the Tank Engine Wiki and this Reddit post. Accent & Tone: Wickham (along with previous voice actor Michael Angelis) used a Yorkshire accent for the character, though Wickham's portrayal is often seen as lighter and less gruff than his predecessors, say Thomas the Tank Engine Wiki and Protagonists Wiki. Role Scope: Wickham took over the UK voice role in 2009 and eventually the US voice role starting from The Adventure Begins. Personal Preference: Wickham has stated in interviews that Sir Topham Hatt is one of his favorite characters to voice.