Which recurring character appears in all nine seasons?

Ranjit Singh is the recurring character who appears in all nine seasons of How I Met Your Mother.

Played by Marshall Manesh, Ranjit is introduced in the pilot as a cab driver who transports Ted and his friends. His job makes him a natural recurring presence: the characters frequently need rides, and Ranjit often appears at important or chaotic moments in their lives.

Ranjit is more than a convenient driver. The series shows him with his wife, Falguni, on a disastrous double date with Marshall and Lily, and later reveals that he becomes wealthy through investments and starts his own limousine service. His appearances therefore evolve along with the show's timeline.

The answer is easy to confuse with Carl MacLaren, the bartender, because both characters regularly appear at the gang's usual hangouts. Victoria and Wendy the Waitress recur across multiple seasons too, but neither spans the complete run. Ranjit appears in 22 episodes, from the pilot through the 2014 finale, making him the show's most consistently recurring supporting character.