(3 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816b_0219r.jpg -- Pictured (L-R): Kayla Compton as Allegra Garcia, Danielle Nicolet as Cecile Horton, Grant Gustin as Barry Allen and Brandon McKnight as Chester P. Runk -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(4 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816b_0261r.jpg -- Pictured (L-R): Grant Gustin as Barry Allen and Brandon McKnight as Chester P. Runk -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(5 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816b_0299r.jpg -- Pictured: Grant Gustin as The Flash -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(6 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816b_0346r.jpg -- Pictured: Grant Gustin as The Flash -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(7 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816a_0008r.jpg -- Pictured (L-R): Kayla Compton as Allegra Garcia, Danielle Nicolet as Cecile Horton, Grant Gustin as Barry Allen and Brandon McKnight as Chester P. Runk -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(8 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816a_0049r.jpg -- Pictured (L-R): Danielle Nicolet as Cecile Horto, Grant Gustin as Barry Allen, Brandon McKnight as Chester P. Runk and Kayla Compton as Allegra Garcia -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(9 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816a_0206r.jpg -- Pictured (L-R): Kayla Compton as Allegra Garcia, Brandon McKnight as Chester P. Runk and Danielle Nicolet as Cecile Horton -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(11 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816a_BTS_0302r.jpg -- Pictured: Behind the Scenes with Director, Caity Lotz -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(12 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816a_BTS_0468r.jpg -- Pictured (L-R): Behind the Scenes with Director, Caity Lotz -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.

(13 of 13)

The Flash -- "The Curious Case of Bartholomew Allen" -- Image Number: FLA816a_BTS_0477r.jpg -- Pictured (L-R): Behind the scenes with Director Caity Lotz and Grant Gustin -- Photo: Colin Bentley/The CW -- © 2022 The CW Network, LLC. All Rights Reserved.